Which of the following elements is most likely to form a covalent bond with oxygen? Ca Na Mg H

Answers

Answer 1

The elements is most likely to form a covalent bond with the oxygen is hydrogen, H.

The covalent bond is bond formed between the atoms by the sharing of the valence electrons. Covalent bond is formed by the mutual sharing of the electrons. The covalent bond formed between the atoms of the same element. The covalent bond formed between the atoms of the different elements.

The covalent bond is formed between the oxygen and the hydrogen by the sharing of the electrons. The example of the covalent bond between the hydrogen and oxygen is H₂O. The two hydrogen atoms and one oxygen atoms combine and form the covalent bond.

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Related Questions

how many grams of gold are produced if 123.7g of potassium react with gold chloride

Answers

If 123.7 g of potassium reacts with gold chloride, the amount of gold produced would be 208.79 grams.

Stoichiometric problem

Potassium metal reacts with gold chloride to produce potassium chloride and gold metal according to the following chemical reaction:

[tex]3K + AuCl_3 -- > 3KCl + Au[/tex]

Recall that: mole = mass/molar mass

123.7 g of potassium would be equivalent to: 123.7/39 = 3.17 mol

From the equation of the reaction, the mole ratio of potassium to gold is 3:1. Thus, the mole equivalent of the produced gold would be:

3.17/3 = 1.06 mol

Mass = mole x molar mass

1.06 mol of gold would be equivalent to: 1.06 x 196.97 = 208.79 grams

In other words, the amount of gold produced from the reaction of 123.7 g of potassium with gold chloride would be 208.79 grams.

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The structures of four isomers of an aldotetrose are given below. Which of the structures are Diastereomers of A? Enantiomers of C? Stereoisomers of D?

Answers

A is a diastereomer of C and B, and C and B are enantiomers of A. B is a stereoisomer of D. Diastereomers are molecules having the same chemical structure and bonding arrangement.

Components, but they can't be combined. In every other way, enantiomers are identical chemically. When two enantiomers are dissolved molecules in a solution, we can distinguish between them based on which way polarized light rotates. Stereochemistry is the study of how molecules with the same chemical formula and atom-bonding order (constitution) can differ in terms of the three-dimensional spatial orientations of their atoms. This phenomenon is known as stereoisomerism, also referred to as spatial isomerism.

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which micropipette should you use to most accurately dispense 125 microliters of solution?

Answers

An adjustable-volume micropipette with a range of 0.5-10 μL would be the most accurate for dispensing 125 μL of solution.

What is the micropipette ?

A micropipette is a precision instrument used to accurately measure and transfer very small volumes of liquid, typically between 0.5 µL and 10 mL. It is commonly used in laboratories to prepare samples for chemical analysis and in medical applications to dispense precise amounts of medication. The micropipette is composed of a plunger, a tip, and a cylinder. The plunger is used to draw liquid into the tip, and the cylinder is used to release the liquid. The micropipette is usually operated using a thumbwheel or a push button that controls the plunger. The tip of the micropipette is designed to fit a range of different sized microtubes, allowing for accurate and repeatable transfer of liquids. The micropipette can be calibrated for accuracy, making it an invaluable tool for laboratories that need precise measurements of liquids.

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Substance A is a liquid at room temperature and pressure, while substance B is a gas under the same conditions. Both are molecular substances. Based on this observation, we can say that the intermolecular attractions in substance A are __________ those in substance B.

A. Stronger than
B. The same strength as
C. Weaker than

Answers

Substance A is  liquid at room temperature and pressure, while substance B is  gas under the same conditions.Based on this observation, we can say that intermolecular attractions in substance A are stronger than those in substance B.

What are intermolecular attractions?

Intermolecular attractions  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

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two atoms that have the same mass number must have the same____

Answers

Answer: Two atoms that have the same mass number must have the same number of protons and neutrons

Explanation: I hope this helps!

How many moles of SiO2 are in 15.5g

Answers

The number of moles in 15.5g of silicon dioxide is 0.258moles.

How to calculate number of moles?

The number of moles in a substance can be calculated by dividing the mass of the substance by its molar mass as follows:

moles = mass ÷ molar mass

Moles is the amount of substance of a system which contains exactly 6.02214076 × 10²³ elementary entities.

Molar mass of silicon dioxide is 60.08 g/mol

moles = 15.5g ÷ 60.08g/mol

moles = 0.258moles

Therefore, 0.258moles is the amount of moles in 15.5g of silicon dioxide.

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the substances initially involved in a chemical reaction

Answers

The substances initially involved in a chemical reaction are called reactants.

They are the substances that are present at the start of the reaction and are transformed into different substances, known as products, during the reaction. The reactants are written on the left side of a chemical equation and the products are written on the right side.

In a chemical reaction,

Reactants are the starting materials that are transformed into different substances called products. These substances participate in the chemical reaction by forming new chemical bonds, breaking existing bonds, or both. The reactants are listed on the left side of a chemical equation, while the products are listed on the right side.

Example:

In the reaction between hydrogen gas (H2) and oxygen gas (O2) to form water (H2O), the reactants are H2 and O2, and the product is H2O. This reaction can be represented by the equation: H2 + O2 -> H2O

In this equation, the reactants H2 and O2 are listed on the left side of the arrow and the product H2O is listed on the right side.

It is important to note that the number of atoms of each element on the reactants side and products side must be equal. This principle is called the law of conservation of mass.

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Which types of posted signs convey information about chemical storage? (Select all that apply)
Hazard signs such as "Flammable," "Oxidizer," and "Corrosive"
Exit sign
Gas Cylinder sign
National Fire Protection Association (NFPA) diamond
Safety equipment signs such as "Safety Shower" and "Eyewash Station"

Answers

Hazard signs such as "Flammable," "Oxidizer," and "Corrosive" National Fire Protection Association (NFPA) diamond Gas Cylinder sign posted signs convey information about chemical storage.

Pictograms are pictorial symbols that are used to express particular information about a chemical's risks. OSHA mandates pictograms on principal labels to indicate chemical dangers. The exact OSHA danger categorization determines each pictogram(s). There are several forms of risks in the workplace, including chemical, ergonomic, physical, and psychological hazards, to mention a few. Dangerous situations. Employees who operate with machinery or on construction sites are more likely to be exposed to safety concerns.  Biological dangers. Biological dangers are exceedingly hazardous  Physical dangers Ergonomic risks Chemical risks Workload risks.

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What gas is not used during fermentation ?

Answers

Fermentation does not require oxygen as it is an anaerobic process. If oxygen is present, pyruvate will be completely oxidized to water and carbon dioxide molecules by some yeast species spiration. On the other hand, yeast species will produce ethanol only in an anaerobic environment by a process called Pasteur Effect.

What is fermentation

Fermentation  is a process of energy production in cells with a state anaerobic (without oxygen) that produces changes in organic biochemistry through the action of enzymes. Fermentation is a form of anaerobic respiration in general, but there is a more precise definition that defines fermentation as respiration in an anaerobic environment without the presence of an external electron acceptor. Examples of fermentation can be found in bread making, wine (beer) and cheese making.

Sugar is a common ingredient in fermentation. Some examples of fermented products are ethanol, lactic acid and hydrogen. However, several other components can also be produced from fermentation, such as butyric acid and acetone. Yeast is a common fermenting agent used to produce ethanol in beer, wine, and other alcoholic beverages. Anaerobic respiration (without external electron acceptor) in mammalian muscles during hard work can be classified as a form of fermentation which produces lactic acid as a by-product. This accumulation of lactic acid can cause muscle fatigue.

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what is the correct reading for the graduated cylinder in the close-up? make sure to report your reading with the appropriate significant figures.
Select one :
41 mL
39.5 mL
40.05 mL
40.5 mL
40.50 mL

Answers

Answer: The correct volumetric reading for the above measuring tube is 40.5 ml.

What are Significant Figures in Measurement?

Measured size numbers are not exact, as opposed to defined sizes or directly counted sizes. To measure the volume of liquid in a graduated cylinder, we need to read the bottom of the meniscus, the lowest point on the curved surface of the liquid.

We know there are three significant digits in graduated tube measurement . Two digits are reliable and one digit is uncertain.

Here in the above measurements the the reliable volume measurement is 40 ml and the uncertain digit is 5.

Hence, the correct answer is 40.5 ml.

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For each of the formulas, classify the formula as either an empirical formula, a molecular formula, or both. Nahco3 c2h6.

Answers

Sodium bicaronate's empirical and molecular formulas are both NaHCO3. The empirical formula for C2 H6 is CH3.

What does "structural formula" mean?

Chemical bonds connecting the atoms of a molecule are located in structural formulae. A structural formula is made up of symbols for the atoms joined by brief lines that stand in for chemical bonds. Single, double, and triple bonds are denoted by one, two, or three lines, respectively.

If we look at the molecular formula for NaHCO3, we can see that it has a molar ratio of 1:1:1:3 and that everything in this molar ratio results in a total mass of: 23g + 1g + 12g + 48g = 84g. Knowing that the molecular formula shows the total molar ratio of each element in a compound, while the empirical formula shows the simplest ratio of the elements present in a compound.

To determine the empirical formula of C2 H6 , you divide the molecular formula by a number that gives the smallest ratio of atoms. So, we divide C2 H6 by 2 to determine the empirical formula CH3. Structural formula in picture given.

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Answer:

Both and then Molecular

Explanation:

On each chair structure identify the relationship of the substituents as cis or trans? a. I = trans; Il trans b. I=cis; Il = cis c. I = trans; Il = cis d. I=cis; Il trans e. not possible to tell while in a chair structure

Answers

The chair structure I has the trans confirmation and the chair structure II has the cis confirmation.

A particular structure can have two isomers, namely, the cis and the trans isomers. The confirmation is said to be cis confirmation when both the substituents are facing in same axial or equatorial plane. The confirmation is said to be trans when both the substituents are facing in the opposite planes.

In the structure I, we can see that both the groups are facing in the opposite planes and hence the structure must have a trans confirmation. In structure two, the groups are in the same plane and hence the confirmation is a cis confirmation.

Hence, the correct option is  c. I = trans; II = cis.

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which types of reactions are essentially opposites of one another?

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Synthesis reaction and Decomposition reaction are two essentially opposite reactions to one another.

The reaction that occurs when two different atoms or molecules interact to form a different molecule or compound is known as the synthesis reaction.

For example, the formation of Sodium Chloride ([tex]NaCl[/tex]) from Sodium ([tex]Na[/tex]) and Chlorine([tex]Cl_2[/tex]). The reaction can be given by the chemical equation:

[tex]2Na+Cl_2 \rightarrow2NaCl[/tex]

The reaction that occurs when one reactant breaks down into two or more products is known as the decomposition reaction.

For example, the decomposition of Calcium Carbonate([tex]CaCO_3[/tex]) by heat into Calcium Oxide ([tex]CaO[/tex]) and Carbon Di-Oxide([tex]CO_2[/tex]). The reaction can be given by the chemical equation:

[tex]CaCO_3\rightarrow CaO+CO_2[/tex]

Hence, Synthesis reaction and Decomposition reaction are two essentially opposite reactions to one another.

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Find the molecular formula for a compound made up of 76.6 % carbon, 6.4 %
hydrogen, and 17.0% oxygen by mass that has a molar mass of 94.12 g/mol.

Answers

A chemical with a mass composition of 76.6% carbon, 6.4 hydrogen, and 17.0% oxygen with a molar mass of 94.12 g/mol has the molecular formula C6H6O.

What is the empirical formula for a substance that contains 94% oxygen and 6% hydrogen?

A substance with a mass percentage of 94% oxygen and 6% hydrogen has the empirical formula OH. It might seem that oxygen and hydrogen should be present in greater proportions in the empirical formula, but keep in mind that the percentages are based on the mass of the elements.

What is the empirical equation for 7.7% hydrogen and 92.3% carbon?

In a hydrocarbon, carbon makes up 92.3% of the mass and hydrogen makes up 7.7%. The compound's empirical formula will be revealed. HCHC5, HCHC3.

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How many Particles of silver will be formed from 17.54 g copper, when Copper (II) reacts with Silver Nitrate?
Equation: Cu + 2AgNO3 → Cu(NO3)2 + 2Ag

Answers

59.60grams particles of silver will be formed from 17.54 g copper, when Copper (II) reacts with Silver Nitrate. The equation is  Cu(s) + 2AgNO₃(aq) → Cu(NO₃)₂ (aq) + 2Ag(s).  

What is molar mass ?

The term molar mass is defined as the mass in grams of one mole of the compound.

The equation is as follows:

Cu(s) + 2AgNO₃(aq) → Cu(NO₃)₂ (aq) + 2Ag(s).  

1mol of Cu will produce 2 mol Ag.

The molar mass of Cu = 63.5g/mol

The molar mass of Ag = 107.9g/mol

63.5g Cu will produce 2 × 107.9 = 215.8g of Ag

17.54g Cu will produce 17.54g Cu / 63.5gCu × 215.8g Ag

= 0.276 × 215.8

= 59.60grams of Ag produced.

Thus, 59.60grams particles of silver will be formed from 17.54 g copper, when Copper (II) reacts with Silver Nitrate.

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Where is the current North magnetic Pole?

Answers

Answer:

The current location of the North Magnetic Pole is in the Arctic Ocean, near the coast of northern Canada, specifically in the region of northern Quebec and Ellesmere Island in the Canadian Arctic Archipelago.

Explanation:

However, it's important to note that the North Magnetic Pole is not a fixed point on the Earth's surface, but it is instead constantly moving. The North Magnetic Pole is moving away from Canada and towards Siberia at a rate of about 55 km (34 miles) per year. This movement is caused by changes in the Earth's magnetic field and is known as the "wandering" of the magnetic poles. The exact location of the North Magnetic Pole can be determined by regular measurements and it is used as a reference point for navigation.

How many grams of hydrogen must react to produce 31.5 grams of ammonia?
a. 5.60 grams
b. 3.73 grams
c. 2.49 grams
d. 1.64 grams

Answers

The grams of hydrogen must react to produce the 31.5 grams of ammonia is 5.60 grams.

The reaction is given as :

N₂ + 3H₂  ---->   2NH₃

The mass of the ammonia = 31.5 g

The moles of ammonia = mass / molar mass

                                       = 31.5 / 17

                                       = 1.85 mol

3 moles of H₂ produces the 2 moles of NH₃

The moles of  H₂ = (3/2) × 1.85

                             = 2.775 mol

The mass of  H₂ = moles × molar mass

                           = 2.775 × 2

                           = 5.60 g

Thus, the mass of the hydrogen will react to form ammonia is 5.60 g.

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How many significant figures does the number 48.050 have?

Answers

Answer: 5 -There are 5 significant figures in 48.050. Count the number of significant figures. Non-zero digits, zeros found between two significant digits, and zeros following a significant digit in a decimal are significant.

Explanation:

heisenberg uncertainty principle definition chemistry

Answers

Heisenberg's uncertainty principle states that the speed and position both cannot be known with perfect accuracy, the more we know about the position, the less we know about speed.

There are certain circumstances that explain that both the position and speed can be found out at the same time like in vehicles, but the uncertainty principle incorporates the uncertainties that are too small as compared to an ordinary object. And this principle is based on the wave duality of matter. It has a mathematical form of Δ x. ΔV≥[tex]\frac{h}{4 pi m}[/tex]

where V is representing velocity, x is representing position, h is the Planck constant and m is the mass of the object.

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Compared with solid ionic compounds, solid molecular compounds generally...A) have lower melting pointsB) are more brittleC) are harderD) conduct electricity as liquids

Answers

A) have lower melting points. Solid molecular compounds often have lower melting points than solid ionic ones. Chemical substances known as molecular compounds assume the shape of distinct molecules.

Molecular compounds are made up of separate molecules that are connected by sharing electrons (covalent bonding). Examples include water, which has molecules of H2O, methane, which has molecules of CH4, and hydrogen fluoride, which has molecules of HF. Ionic bonding will often be present in compounds when a metal is bound to either a non-metal or a semi-metal. Molecular compounds are those that include just non-metals or semi-metals combined with non-metals and exhibit covalent bonding. Nonmetals are used to create molecular (or covalent) compounds. Compound molecules are created when certain quantities of atoms from several elements combine. Water, ammonia, and carbon dioxide are among examples. Metals and nonmetals are used to create ionic compounds.

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carbohydrate workshop
1- Classify each of the following monosaccharides as aldose or ketose:
2- Identify each of the following cyclic structures as the α or β form:
3- Identify each of the following cyclic structures as the α or β form:

Answers

Following is the classification of monosaccharides as aldose or ketose and structures as the α or β form.

What distinguishes beta and a-anomers from one another?

The main distinction between alpha and beta anomers is that the hydroxyl group at the anomeric carbon in the former is in cis to the exocyclic oxygen at the anomeric center, while the latter has the hydroxyl group in trans.

If the substituent off the anomeric center in a Fischer projection is on the same side as the configurational (D- or L-) carbon's oxygen, it is the —anomer. It is the -anomer if it is pointed in the other direction.

18.5

A) Ketose

B) Aldose

C) Ketose

D) Aldose

E) Aldose

18.11

A) α form:

B) β form:

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bonds between two atoms that are equally electronegative are___

Answers

Bonds between atoms having the same value of electronegativity in the bond, is called as the non-polar covalent bond.

A covalent bond is a chemical bond between two atoms in which pairs of electrons are shared between both the two atoms. The covalent bond is also called a molecular bond. The forces of attraction or repulsion acting between two atoms, when they both share electron pair or bonding pair, is called as Covalent Bonding. If the atoms have the same electronegativity, they will share their valence electrons equally with each other. This type of a covalent bond where electrons are shared equally between the two bonded atoms is called a non-polar covalent bond.

Covalent bonding also includes many kinds or types of interactions, including σ-bonding (sigma bonding), π-bonding ( pi bonding), metal-to-metal bonding, bent bonds, agostic bonding, three-center two-electron bonds and three-center four-electron bonds.

On the other hand, a polar covalent bond is formed between two non-metal atoms that have different electronegativities. Thus the electrons consisting the bond are unevenly shared between th atoms of a polar covalent bond.

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what is the weathering of rocks by chemicals called____

Answers

Weathering of rocks by chemicals called  the breaking down or dissolving of rocks and minerals on Earths surface.

What is meant by rocks?

Any naturally occurring solid mass or combination of minerals or mineraloid materials is referred to as rock (or stone) in geology.It is divided into groups based on the minerals it contains, its chemical make-up, and how it is produced.Except for the liquid outer core and pockets of magma in the asthenosphere, the Earth's crust and the majority of its interior are made of rocks. Petrology and mineralogy are just two of the many geology subdisciplines that are involved in the study of rocks.It might only cover rocks found on Earth, or it might also cover planetary geology, which examines materials from other celestial bodies.

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CAN ANYONE HELP ME
NAME 5 POLYMERS

Answers

Answer:

1. Polyethylene (PE)
2. Polypropylene (PP)
3. Polyvinyl chloride (PVC)
4. Polystyrene (PS)
5. Polytetrafluoroethylene (PTFE), also known as Teflon.

The solubility curve of z(molar mass = 160gmol per 0.4 0.3 0.2 0. 40. 80 200cm ³ of a saturated Solution of x at 80°c was cooled to 40°C. What weight of x will crystallizes out​

Answers

For the solubility curve of saturated solution x, The weight of x will crystallizes out​ will be 16g.

Saturated Solution: What does that mean?

When all of the solute has been dissolved, a solution is said to be saturated. In a saturated solution, no more solute may dissolve after a given temperature. We can make a saturated solution by attempting to dissolve the solute until further attempts are futile.

a mixture once the solvent has completely dissolved. Any extra solute will crystallize and sink to the bottom of the vessel.

When a solution reaches a given temperature, no more solute can be dissolved, it is said to be saturated. For instance, adding sodium chloride (NaCl) to water at room temperature results in the formation of a saturated solution.

At 80°C, we have 1000cm³ = 0.4mol/cm³

40°C = 0.3mol/cm³

hence, the loss in concentration = 0.1mol/cm³

= 0.1 x 160 = 16g

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Complete question -

The density of gold is 19.32 g/cm^3. If you had 32cm^3 of gold, how much mass would you have

Answers

One of a substance's defining characteristics is density.

What is meant by density?

A substance's density is one of its distinguishing qualities. A material's density is determined by how much space a given amount of the substance occupies relative to its mass (volume).

A substance's density is defined as its mass (m) per unit volume (V). Because density is an intensive quality, it does not change as the amount of a material changes.

Given:

[tex]$$\begin{aligned}& \text { Density }=19.3 \mathrm{~g} / \mathrm{cm}^3 \\& \text { Mass }=0.715 \mathrm{k} \mathrm{g} \times \frac{1000 \mathrm{~g}}{1 \mathrm{~kg}}=715 \mathrm{~g}\end{aligned}$$[/tex]

Equation

[tex]$\text { density }=\frac{\text { mass }}{\text { volume }}[/tex]

Rearrange the equation to isolate volume and solve.

[tex]$\text { volume }=\frac{\text { mass }}{\text { volume }}$$[/tex]

[tex]$\text { volume }=\frac{715 g A u}{19.3 \frac{q}{c m^3}}=37.0 \mathrm{~cm}^3 \mathrm{Au}$$[/tex]

Sides of the Cube

Since all sides of a cube exists equivalent, the volume of a cube is [tex]$\mathrm{s}^3$[/tex], where s exists one side. If you contain the volume of the cube, you can take the cube root of the volume to estimate the value of each side of the cube.

Each side [tex]$=\sqrt[3]{37.0 \mathrm{~cm}^3} \approx 3.332 \mathrm{~cm}$[/tex]

The complete question is;

The density of gold is [tex]19.3 \mathrm{~g} / \mathrm{cm}^3$[/tex]. What is the volume, in [tex]$\mathrm{cm}^3$[/tex], of a sample of gold with mass [tex]$0.715 \mathrm{~kg}$[/tex]? If this sample of gold is a cube, how long is each edge in [tex]$\mathrm{cm}$[/tex] ?

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A sealed container can hold
6.28 L CO2 at 1.00 atm and 293 K.
How many moles of CO2 fill the
container?

Answers

Answer:

0.26

Explanation:

PV=nRT

n= PV/RT

n = (1*6.28)/(0.082*293)

n=0.26 moles

The loss of part or all of a forest, _____, is a major threat to biodiversity.

1)Deforestation
2)Damming
3)Drainage
4)Poaching

Answers

Answer: #1 deforestation

Explanation:

Deforestation (1) is the correct answer

what should you do if all of the solvent evaporates while you are cooling your recrystallization beaker?

Answers

If this occurs, just redissolve the solute with more solvent because the chemical that crystallized out of solution owing to evaporation is unlikely to be pure. the solvent evaporates recrystallization .

while you are cooling your recrystallization.  Recrystallization is a physical process for purifying compounds depending on their solubility. The procedure is finished by heating the material to dissolve the chemical with impurities in a solvent combination. Recrystallization is a method used in chemistry to purify compounds. When a compound and impurities combination is dissolved in a suitable solvent, either the desired compound or the impurities can be extracted from the solution, leaving the other behind. It gets its name from the crystals that form when the chemical precipitates. Recrystallization can also refer to the natural formation of bigger ice crystals at the cost of smaller ones.

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scientists have made a breakthrough in their mission to reverse aging

Answers

The given statement "scientists have reached a main milestone in learning how to reverse aging" is true because scientists have investigated that lifestyle interventions, such as proper and healthy diet, exercise and supplements can reverse aging.

Scientific studies reveal that lifestyle interventions, including diet, exercise, and supplements can reverse aging. For instance, in one of the studies, patients were put on a healthy diet, had to take particular supplements, and exercise. After 8 weeks of following this plan, their epigenetic age was reversed by almost two years.

Thus, the given statement correctly specifies that scientists have achieved a big milesotme to reduce or reverse aging.

"

Complete question

scientists have reached a key milestone in learning how to reverse aging

True

False

"

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What bird represents a dead person?. The temperature for the previous two days were 62 degrees and 58 degrees. Find the temperature for the third day such that average daily temperature for the three days is 64 degrees. What are the rules for plotting a graph?. what is the circumfrence of this circle r = 2 km according to the video, why is it unsafe to drive with your arm resting on the middle of the steering wheel? Anyone who helps w this page gets brainliest according to the wall street journal, which major retailer is about to file for bankruptcy? writing about and researching leadership is group of answer choices declining in popularity less popular in the business area than in social sciences a universally appealing topic simplistic rather than complex The management of a company uses an impartial third party to resolve a dispute it has with some of its employees.Which of the following does this scenario describe?ArbitrationGrievanceMediationBargaining from 1775 until the articles of confederation were approved, government duties were carried out by what? Is it possible for soft bodied marine organisms like bryozoans to form fossils?(This is science btw) please help Which of the following was the MAIN reason that Texas seceded and joined the Confederate States of America? PLSSSHELP ASAP Determine which integers in the set S:{40, 10, 20, 40} will make the inequality one fifth times the difference of m and five is less than or equal to one tenth times the difference of m and twenty false. S:{40, 10}S:{10, 20}S:{20, 40}S:{40, 40} the nurse has just finished administering two units of packed red blood cells (prbcs) to a client with anemia. before the blood transfusion, the client's hemoglobin was 5.5 g/dl and hematocrit was 26%. the nurse would expect which laboratory values upon the next blood count? h+2k=33h+6k=9Solve the system of liner equations using elimination by multiplication Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 7 hours of burning, a candlehas a height of 23.2 centimeters. After 26 hours of burning, its height is 15.6 centimeters. What is the height of the candle after 25 hours? Doeringers research suggests that japanese managers pay attention to values and attention to business performance.a. Trueb. False How do you multiply 3 mixed fractions?. What are the factors of 9x2 24x 16 *?. Which answer best describes the quadratic formula?Group of answer choicesA formula that can determine the sides of a right triangleA formula that can solve quadratic equations in standard formA formula that can solve linear equationsA formula that can solve quadratic equations in vertex formFlag this QuestionQuestion 21 ptsSelect each quadratic expression that is in standard form. Group of answer choicesLaTeX: 4x^2+8x-2x+104 x 2 + 8 x 2 x + 10LaTeX: -3x^2+5x-9 3 x 2 + 5 x 9LaTeX: 5x^2-3+2x5 x 2 3 + 2 xLaTeX: \frac{3}{5}x^2-6x+100000003 5 x 2 6 x + 10000000