66.7 ml of ethanol was dissolved in 222.2 ml of water. what is the volume % of the ethanol in the solution? Respond with the correct number of signficant figures in scientific notation. (Use E notation and only 1 digit before decimal, for example, 2.5E5 for 2.5 times 10 to the power of 5)
In 222.2 mL of water, 66.7 gallons of ethanol was dissolved. The volume percent of ethanol in the mixture is 30.0%.
Can people drink ethanol?Over two billion individuals consume ethyl alcohol (also known as ethanol) on a daily basis. By fermenting yeast, sugars, and starches, this kind of alcohol is created. Beverages with ethanol as an ingredient, including beer and wine, have been consumed by people for generations to alter their mood.
Is alcohol made of ethanol prohibited by Islam?If the amount of ethanol in a product is less than 1%, it is regarded as an important preservative, making it eligible for Halal certification as Mubah, which is permissible as long as the ethanol was either produced naturally through fermentation with in presence of oxygen or was artificially supplied.
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Which of the following has the lowest freezing point
A. 0.1 M glucose B. 0.1 M ethanol C. 0.1 M urea D. 0.1 m Sucrose
The right answer is C) A solute's concentration affects a colligative property that causes a depression in freezing point.
What does chemistry mean by a colligative property?
Colligative qualities of solutions are characteristics that depend on the quantity of molecules or ions in the solute, but not on the kind of solute. Osmotic pressure, boiling point elevation, freezing point depression, and vapor pressure reduction are examples of ligand-like properties.
Why are colligative qualities given that name?
Colligative means "connected to the number" in Greek, which suggests that these attributes are related to the quantity of solute particles rather than their identities. These features are known as colligative properties.
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In an endothermic reaction, energy is
Answer:
Endothermic reactions absorb energy
Explanation:
Answer:
Energy (Heat energy) is absorbed from the surroundings
Explanation:
When the total heat content of the products is more than the reactants, heat energy must be absorbed from the surroundings for the reaction to proceed . such reaction is said to be endothermic
What type of protein secondary structure does the structure shown here (Figure 1) represent?
A. ?-helix
B. ?-sheet
C. ?-helix
D. ?-sheet
E. ?-turn
The protein secondary structure shown in the figure represent α-helix.
The helical structures:
The α-helix is the most prevalent kind of secondary structure in proteins.The first person to foresee the presence of α-helices was Linus Pauling. The first protein to have a three-dimensional structure was myoglobin, which was discovered by Max Perutz and John Kendrew using X-ray crystallography.The illustration below shows an instance of a α-helix. "Stick representation" is the name given to this style of protein structural depiction.There are other helical structures in proteins besides the α-helix. The 3 10α helix, which is supported by hydrogen bonds of the type I i+3), the α-helix, which is supported by hydrogen bonds of the type I i+5), and the left-handed L-α helix are further helical configurations. The 3 10 αhelix has a radius that is smaller than the α-helix, whereas the -helix has a radius that is bigger.To know more about helical structures:
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Which type of compound is P2O4? a. Fixed charge ionic compound b. Variable charge ionic compound c. Molecular compound d. Metallic compound
Answer:
since both of them are non-metals its not gonna be an ionic compond so its C.Molecular Compound
consider a di-glycine dipeptide (e.g. two glycine amino acids that have been covalently bonded together via a peptide bond). if the amino group and the c-terminal carboxy group are both protonated, which ph value do you expect is most consistent with these observations?
The pH of the solution is now obtained as 10 after deprotonation.
What is the correct pH value?We know that the pH has to do with the degree of the acidity or the alkalinity of system. Now we know that the pH can be measured by means of a pH meter.
In the body, there are a lot of biological molecules that work together to make the body to function effectively. Of all of these compounds, the most abundant of the biological molecules that are important in the body are the protein molecules.
The protein molecule is composed of the amino acids. Now we know that the amino acids can be protonated or deprotonated and the pH of the system would depend on whether the amino acid is protonated or deprotonated. The deprotonation of the substrate would make it much more basic.
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Missing parts;
Consider a di-glycine dipeptide (e.g. two glycine amino acids that have been covalently bonded together via a peptide bond). If the amino group is neutral and the C-terminal carboxy group is deprotonated, which pH value do you expect is most consistent with these observations?
Group of answer choices
a. 1
b. physiological pH
c. 3
d. the pKa of an aspartic acid side-chain carboxylate
e. 10
Chlorine (Cl), neon (Ne), and helium (He) all exist as gases, but only one of them is diatomic. Which is it, and why is it diatomic while the others are monatomic?
Among the given gases, only chlorine is diatomatic and others are monatomic.
Why among the given gases, only chlorine is diatomatic and others are monatomic?
Cl belongs to seventh group in the periodic table. Thus it has an unpaired electron in its valence shell.
By sharing the lone electron of other Cl atom it gets stability and exist in diatomic form.
Other gases Ne and He belongs to 8th group or o group. They are inert gas and has completely filled configuration.
So, the won't react with others to get stability.
Therefore, Among the given gases, only chlorine is diatomatic and others are monatomic.
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consider the chlorite anion. what is the central atom? enter its chemical symbol. how many lone pairs are around the central atom? what is the ideal angle between the chlorine-oxygen bonds? compared to the ideal angle, you would expect the actual angle between the chlorine-oxygen bonds to be ...
The actual angle between chlorine-oxygen bonds may differ slightly from the ideal angle due to various factors such as electron-electron repulsion and bond length
The central atom of the chlorite anion (ClO2^-) is chlorine and its chemical symbol is Cl.
There are two lone pairs of electrons around the central chlorine atom. The ideal angle between the chlorine-oxygen bond of the chlorite anion is about 120 degrees.
This is because the molecular structure of the chlorite ion is curved, with a chlorine atom bonded to two oxygen atoms. The actual angle between chlorine-oxygen bonds may differ slightly from the ideal angle due to various factors such as electron-electron repulsion and bond length. However, it is generally expected that the actual angles between chlorine-oxygen bonds are close to the ideal angles.
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The boiling point of the fluoromethane (CH3F) is higher than that if fluorine has (F2). Identify the point differences in terms of intermolecular forces? meant to say: The boiling point of the fluoromethane (CH3F) is higher than that of fluorine (F2). Identify the point differences in terms of intermolecular forces?
The boiling point of the fluoromethane (CH3F) is higher than
Diflourine (F-F).
What are the point differences in terms of intermolecular forces?
1. London dispersion forces:
The London dispersion exerts a force of between all molecules. The intensity of the LDF is proportional to the polarizability of the molecule, which depends on the number of electrons and the surface area of the molecule. In the past, the London Scattered Force has been the weakest of the three van der Waals forces. Contrary to what some teachers and some authors say, London dispersion forces are often stronger than Keysome or Debye forces, surpassed only by hydrogen bonding. Some teachers are guilty of telling students that the strength of the London dispersion force depends on its molar mass. This is just a coincidence. Understand, however, that molar mass is not the reason for the fluctuations in the strength of the London dispersion force.
2. Keesom forces (dipole-dipole attraction):
The force by which one polar molecule attracts another polar molecule. The oppositely charged ends of the molecule experience electrostatic attraction.
3. Debye forces (induced attraction) :
The attractive force between polar and nonpolar molecules, where the polar molecule induces charge separation in the nonpolar molecule. Debye forces can exist between two polar molecules, even for similar molecules. In such cases, the induced charge can temporarily increase or decrease the material's dipole moment.
4. Hydrogen Bonds
A weak covalent bond between a hydrogen atom of a molecule attached to an N, O, or F and an N, O, or F of an adjacent molecule. A hydrogen atom acts as a bridge and forms a bond between two molecules. Hydrogen bonding is more than electrostatic attraction between molecules, instead there is evidence of orbital overlap and covalent bond formation.
Therefore, The boiling point of the fluoromethane (CH3F) is higher than
Diflourine (F-F).
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brainly which process forms all elements up to and including iron, except light elements such as hydrogen and helium?
Nuclear fusion is the process which forms all elements up to and including iron, except light elements such as hydrogen and helium.
Nuclear Fusion reactions power the solar and different stars. In a fusion response, two mild nuclei merge to shape a single heavier nucleus.
The method releases power due to the fact the total mass of the ensuing single nucleus is less than the mass of the 2 unique nuclei. The leftover mass turns into electricity.
For years, the science has proved difficult to master. However over the last year, nuclear fusion has inched in the direction of fact. Scientists are mere years from getting extra energy out of fusion reactions than the power required to create them, they stated.
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kJ. The energy of 3600 cal is equal to Hint: 1 cal = 4.184 J
O 0.86
O 15
O 3.6
O 4.184
O 15 000
The energy of 3600 calory = 15kJ.
The option b) 15 is correct answer.
Because 1cal = 4.184J
⇒ 3600cal = 3600 × 4.148
= 14,932.8 ≈ 15000J
= 15kJ
What is the relation between 1 calorie and Joule?
1 Calorie/kcal = 4.2 kilojoules
Joule is the unit of energy.
Is A Joule the same as a calorie?
Kilojoules and calories are essentially two separate terminology-based units of measurement for the energy found in food and the energy we burn. By dividing the number of calories by 4.2, one can convert them to kilojoules.
Why is 1 calorie 4.18 joules?
It is false that 1kcal = 4.18 joules. The 'kcal' is one of the most common physical units which are used to measure the energy. The joule is now the SI unit used to measure energy. 1 kcal = 4184 joules (approx.)
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Draw the additional resonance structure(s) of the structure below? 3= 6 Include all valence lone pairs in your answer: Draw one structure per sketcher: Add additional sketchers using the drop-down menu in the bottom right corner: Separate resonance structures using the symbol from the drop-down menu: ost0 CH4
The resonating structures for the given compound is represented in the image attached below.
When a molecule is represented via way of means of or extra hybrid structures and that shape are specific withinside the function of electrons now no longer in function of atoms, then the shape is referred to as as resonating shape and this phenomenon is referred to as as resonance. Resonance systems are a hard and fast of or extra Lewis Structures that together describe the digital bonding of a unmarried polyatomic species inclusive of fractional bonds and fractional charges.
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How many molecules are in the element 3Na2SO4?
A mole is the unit that measures the amount of a substance. One mole of 'something' contains 6.022 x 1023 entities.
How do you know how many molecules an element has?To determine the required number of molecules, first determine the molecular weight of the substance for one mole, then divide the molar mass value by the molecular mass, and multiply by the Avogadro constant.Elements can be made of one atom, like He, or be elemental molecules, such as hydrogen (H2), oxygen (O2), chlorine (Cl2), ozone (O3), and sulfur (S8). Atoms are not drawn to scale. Some elements are monatomic, meaning they are made of a single (mon-) atom (-atomic) in their molecular form.Taking into account the definition of avogadro's number, 3 moles of Na₂SO₄ are 1.8069×10²⁴ atoms of Na₂SO₄.Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.In this case you have 3 moles of the compound Na₂SO₄. Then you can apply the following rule of three: if 1 mole of the compound contains 6.023×10²³ atoms, then 3 moles of the compound contain how many atoms of copper?amount of atoms of copper= (6.023×10²³ atoms× 3 moles)÷ 1 moleamount of atoms of copper= 1.8069×10²⁴ atomsFinally, 3 moles of Na₂SO₄ are 1.8069×10²⁴ atoms of Na₂SO₄.3Na= 3 sodium atoms2S= 2 sulfur atoms2O4= 8 oxygen atomsThe numbers in front of atoms are like coefficients(i.e. 2x or 3y). You should have 14 atoms in total.To learn more about molecules refer to:
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which of the following best describes the pattern in the atmospheric co2 concentration data over the past 200,000 years? responses the concentration of co2 fluctuate between 150 ppm and 250 ppm. the concentration of c o 2 fluctuated between 150 parts per million and 250 parts per million . the concentration of co2 fluctuate between 150ppm and 250 ppm until recently, when the concentration rose exponentially. the concentration of c o 2 fluctuated between 150 parts per million and 250 parts per million until recently, when the concentration rose exponentially. the concentration of co2 remained constant at first from 200,000 years ago until 50,000 years ago, and then began a steady decline. the concentration of c o 2 remained constant at first from 200,000 years ago until 50,000 years ago, and then began a steady decline. the concentration of co2 rose exponentially to 400ppm and leveled off at carrying capacity.
Before recently, the CO2 levels varied between 150 ppm and 250 ppm before rising dramatically.
Which successional stage is the oldest?The forest, sometimes known as the climax stage, is the first stage of a succession performance. A lichen is an example of an early species that can be found in habitats like a forest.
What caused the environment of the peppered moth to alter, and how?Urban tree trunks and buildings had turned black due to sooty air pollution brought on by industrialization and home coal fires, which also killed out lichens. Thus, the melanic form of the moth was better hidden and more likely to live and create progeny, whereas the pale form was now more visible to predators.
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the changing of a substance from a liquid into a vapor or gas is called
Answer: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.
Explanation: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.
Which element has the following electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3 a. Pb b As c Sb d P e Se
As (arsenic) has the electrical configuration shown below.
This suggests that option b) is the appropriate response.
How can people consume arsenic?
Drinking water is most likely how people get exposed to inorganic arsenic. This is especially true in regions where inorganic arsenic levels in water sources are greater by nature. Inorganic arsenic can also be ingested through some meals, like rice and some fruit juices.
What is the purpose of arsenic?
Currently, gallium arsenide and arsine gas are two common forms of arsenic employed in the electronics industry as semiconductor device components. More than 90% of domestic arsenic trioxide use in 2003 was attributed to the production of wood preservatives, particularly copper chromated arsenate (CCA).
Is arsenic a poison or a drug?
Arsenic (As) is frequently referred to as a poison. Few individuals are aware that As has also been utilized extensively in medicine. For the treatment of conditions like diabetes, psoriasis, syphilis, skin ulcers, and joint problems, As and its compounds have been utilized as medication in the past.
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why does the existence of unpaired electrons in the valence shell determine the reactivity of an atom
The electrons that are found in an atom's outermost shell are known as valence electrons. The reason for this is because if atoms engage, the electrons in their outermost shells are the first to make contact with one
Which electrons have valence?The electrons located in an atom's valence shell, and energy level, are known as valence electrons. For instance, oxygen contains two valence electrons in the 2s subshell as four with in 2p subshell, for a total of six valence electrons. The oxygen's valence electron configuration is 2s22p4.
Are electron shells always eight?The octet rule, a general rule of thumb, states that most biologically significant elements require eight electron in the outer shell to be stable. Even if the valence shell is the some shell, that has a maximum capacity for holding 18 electrons, some atoms can nevertheless be stable with an octet.
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PQ-L. pnceptuci Which sample has the largest mass? mole of marshmallows (C) mole of COz (carbon dioxide) molecules mole of Pb (lead) atoms All of these have the same mass
The biggest mass is one mole of Pb (lead) atoms.
One mole of any substance contains 6.02 x 1023 of that substance's atoms, molecules, or ions (depending on which unit is most relevant). Chemically speaking, the essential flavourless marshmallow constituents are: C 6 H 12 O 6 + H 2 O + C 2 HC 5 H 9 NOC 5 H 10 NO. Marshmallows (sugars) have a molar mass of 180.16 g/mol and the chemical formula C6H12O6.
One mole of carbon dioxide molecules weighs 44.01g because one carbon molecule weighs 12g, one oxygen molecule weighs 16g, and two oxygen molecules weigh 32g each, adding up to 44g.
Pb (lead) contains 207.2g per mole.
We can infer from the observations above that Pb(lead) has the highest mass.
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Compare 2,3-pentanediol and 2,4-pentanediol with respect to the number of stereoisomers possible for each. Which ones are chiral? Which are achiral?
Both molecules have two chiral centers, one at each point of attachment for a hydroxyl group.
What are stereoisomers?According to a general definition, stereoisomers are isomers with the same composition (i.e., the same components), but different orientations in space. Enantiomers and diastereomers are the two different types of stereoisomers.
X = [tex]2^{n}[/tex], where n is the total number of stereogenic atoms in the molecule, is the formula for calculating the maximum number of stereoisomers. The maximum number of stereoisomers can be accurately determined by the formula X = [tex]2^{n}[/tex], but in cases of great symmetry, it cannot determine the actual number.
Both molecules have two chiral centers, one at each point of attachment for a hydroxyl group. It is not possible to have a stereoisomer of 2,3-pentanediol with a plane of symmetry, while there is one stereoisomer of 2,4-pentanediol with a plane of symmetry. The plane of symmetry reduces the possible number of stereoisomers.
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when 0.485 g of compound x is burned completely in a bomb calorimeter containing 3000 g of water, a temperature rise of 0.285°c is observed. what is δu of the reaction for the combustion of compound x? the hardware component of the calorimeter has a heat capacity of 3.81 kj/°c. the specific heat of water is 4.184 j/g·°c. the molar mass of compound x is 56.0 g/mol.
The change in internal energy for 56 g/mol of the molecule is discovered to be e -539 kJ/mol.
A reaction's internal energy change is represented by the symbol U. U = calorimeter heat plus solution heat for a reaction in the bomb calorimeter.
Heat capacity equals heat Temperature
Regarding, 0.485 g compound
For the 56 g/mol compound, U = 3.81 0.285 + 4.184 3000 0.285 U = 4.67 kJ
U = moles of energy/mass
56 U equals 539 kJ/mol at U = 4.67/0.485.
The whole amount of energy that a thermodynamic system has inside of it is known as internal energy. It is the energy required to develop or prepare the system in its current internal condition, and it comprises both internal kinetic energy and potential energy contributions. It keeps track of the system's energy gains and losses brought on by modifications in its internal state. [1][2] It excludes any external energies from the surrounding force fields as well as the kinetic energy of motion of the entire system. The first law of thermodynamics, which is based on the fact that an isolated system's internal energy is constant, is stated as the law of conservation of energy. The interior energy is a vast quality.
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the main reason that no2 has a higher boiling point than co2 is that no2
Due to its dipole-dipole interactions, NO2 does have a higher boiling point as CO2. The molecular structure of CO2 is straight, and therefore lacks a net molecule dipole moment.
Describe the dipole moment using an example.
The symmetry of a molecules is established using the dipole moment. The molecules will not be symmetric and have some dipole moment if they contained two or even more polar links. For instance, H2O is 1.84 D and CH3Cl, or methyl chloride, is 1.86 D.
How is the dipole moment determined?
The below formula is used to determine a chemical bond's dipole moment: = qr (where q is the size of a separated charge, r is the gap between the charges, and is the bonding dipole moment).
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a reaction has a theoretical yield of 76.5 grams of a product, and a percent yield of 89.7 %. what is the actual yield (in g) of this product in this reaction?
The actual yield of the product in the given reaction is 68.62 grams.
The ratio of the reaction's actual yield to its theoretical yield, multiplied by 100 is known as the percent yield. The amount of a product that is produced as a result of a chemical reaction is known as the actual yield. And, the amount of a product that results from the total conversion of the limiting reactant in a chemical process is known as the theoretical yield.
From the percent yield formula,
[tex]\text{actual yield}=\frac{\text{percent yield} \times\text{theoretical yield}}{100\%}[/tex]
Here, given, the percent yield is 89.7% and the theoretical yield is 76.5%. Then, the actual yield is,
[tex]\begin{aligned}\text{actual yield}&=\frac{89.7\%\times\mathrm{76.5\;g}}{100\%}\\&=\mathrm{68.62\;g}\end{aligned}[/tex]
The answer is 68.62 grams.
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How could a lake be considered a part of one of Earth’s spheres during one season and part of another sphere during another season?
The interactions between Earth's five systems—the geosphere, biosphere, cryosphere, hydrosphere, and atmosphere—create the conditions we are accustomed to.
What is Atmosphere?On Earth, there are five major systems, or spheres. The Earth's interior and surface, which are both formed of rocks, make up the first system, the geosphere.
The second system is made up of the little area of the planet that may sustain life; this area is known as the biosphere. The third system contains the hydrosphere, or regions of Earth that are completely covered with water.
The fourth system is the atmosphere, a gaseous envelope that maintains the planet's temperature while also supplying carbon dioxide for photosynthesis and oxygen for breathing.
Therefore, The interactions between Earth's five systems—the geosphere, biosphere, cryosphere, hydrosphere, and atmosphere—create the conditions we are accustomed to.
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eugenol acetate + KMnO4-->
eugenol + Br2 -->
eugenol + FeCl3 -->
eugenol acetate --> FeCl3
FeCl3 is produced when eugenol acetate and KMnO4 are combined.
What distinguishes eugenol from eugenol acetate?Eugenol comprises two oxygen atoms, a bulky structure, and can react with an ester to produce eugenyl acetate. In comparison to eugenol, eugenyl acetate has a larger structure and more oxygen, which optimizes the process of fuel combustion.
The usage of eugenol by dentists: why?Eugenol has been used extensively in dentistry to alleviate pulpitis and toothaches (7). Eugenol may be a perfect natural ingredient for use in dental care products, according to a prior study. Eugenol prevents S. from growing and from producing both soluble and insoluble glucans.
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The IR spectrum of limonene is shown in Figure Label each diagnostic peak with the appropriate bond (ignore the peaks in the fingerprint region). Figure 4: IR Spectrum of Limonene courtesy of SDBSWeb (National Institute of Advanced Industrial Science and Technology; July 22, 2006) What functional group(s are present in limonene?
The double bond is the only functional group in limonene. The terpene component limonene can be found in the citrus peel essential oil.
What are the limonene's functional groups?A methyl group is substituted at position 1 and a prop-1-en-2-yl group is substituted at position 4 in the monoterpene limonene.
What is the R SH functional group?Alkanethiols or Alkyl thiols are thiols with the structural formula RSH, in which an alkyl group (R) is joined to a sulfhydryl group (SH). Alcohols and thiols exhibit comparable connectivity. Orange and other citrus fruit peels are used to make the oil limonene.
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what atomic or hybrid orbitals make up the bond between c1 and c2 in propylene, ch2chch3?
The triple bond between C1 and C2 is formed by the hybrid orbitals spsp s p s p.
What is the molecular shape VSEPR theory, often known as the valence-shell electron-pair repulsion theory?
The fundamental idea in molecular structures is known as valence shell electron pair repulsion (VSEPR). It basically says that electron pairs are attracted to one another and want to keep as far away as possible because they are made up of negatively charged particles.
What are the three fundamental assumptions of the VSEPR theory?
Since electron pairs are negatively charged, they will go as far apart as they can. Instead of bound electron pairs, lone pairs use up space. In comparison to single bonds, double bonds
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pyroxene has the chemical formula, (naca)(mg,fe,al)(al,si)2o6. is pyroxene a felsic or mafic silicate mineral?
pyroxene has the chemical formula, (naca)(mg,fe,al)(al,si)2o6. pyroxene is a Mafic silicate mineral.
silicate mineral or extrusive igneous rich in iron and magnesium is widely recognized as a mafic mineral or rock. The large percentage of mafic minerals are dark, and some of the most common rock-forming mafic minerals are olivine, pyroxene, amphibole, and biotite. Basalt, diabase, and gabbro are examples of common mafic rocks. When trying to discuss stones or lava, mafic refers to the quantity of silica inside the lava or rock, whereas felsic refers to the amount of silica in the lava or stone. 6. Mafic rocks are darker in colour than felsic rocks. A chemical formula is a way to convey information about the chemical percentages of atoms that make up a specific chemical compound and molecule by using chlorine atom symbols, numbers, and occasionally other symbols like parentheses, dashes, brackets, commas, and plus and minus signage.
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Rank the following in order of increasing electrolyte strength ( 1 = weakest; 4 = strongest) a)Al2S b)HzS c)(NH4)3PO4 d)Fe(N03)2
The order of increasing electrolyte strength is as follows:
Al2S.HzS.(NH4)3PO4.Fe(N03)2.An electrolyte is a substance that produces ions in solution and can conduct electricity. The strength of an electrolyte is a measure of how well it ionizes or dissociates in solution, and therefore how well it can conduct electricity. In general, strong electrolytes ionize completely in solution, while weak electrolytes only ionize partially. Therefore, the order of increasing electrolyte strength reflects the ability of these substances to ionize in solution and conduct electricity.
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which compound would you expect to have greater surface tension, acetone [(ch3)2co] or water (h2o) ?
The surface tension depends on the intermolecular forces, and it rises as the strength of those forces rises. Hydrogen bonds are present in water in acetone, but not the other way around. Water, therefore, has a high surface tension.
The only other liquid with a higher surface tension than water is mercury. A sign that the hydrogen bond is present is surface tension. Hydrogen bonds between the water molecules below them and those at the surface of the water create a powerful attraction between them.
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66.7 ml of ethanol was dissolved in 222.2 ml of water. what is the volume % of the ethanol in the solution? Respond with the correct number of signficant figures in scientific notation. (Use E notation and only 1 digit before decimal, for example, 2.5E5 for 2.5 times 10 to the power of 5)
A total of 66.7 liters of ethanol were dissolved in 222.2 mL of water. The mixture contains 30.0% ethanol by volume.
Is ethanol safe to consume?Ethyl alcohol, usually known as ethanol, is regularly consumed by more than two billion people worldwide. This type of alcohol is produced by fermenting yeast, sugars, and starches. People have long consumed alcoholic beverages that contain ethanol to change their mood, such as beer and wine.
Does Islam forbid ethanol-based alcohol?If a product contains less than 1% of ethanol, it is considered to be a significant preservative and qualifies for Halal logo as Mubah, which is acceptable provided the ethanol was either found naturally through fermentation with oxygen present or was artificially added.
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