Helicase enzyme moves outward from origin of replication and breaks hydrogen bonds between DNA nucleotides.
An enzyme is a bio catalyst which is nearly a protein. It speeds up the rate of a specific chemical reaction inside the cellular. The enzyme isn't destroyed in the course of the chemicsl reactaion and is used again and again.
Common digestive enzymes include : Carbohydrase breaks down carbohydrates into sugars. Lipase convert fat into fatty acids.
Enzymes help in speeding up chemical reactions in the human body. They are crucial for respiratory, digesting food, muscle and nerve characteristic, amongst heaps of different roles. Every cell in the human body contain lots of enzymes. Enzymes provide help with facilitating chemical reactions within each cellular.
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the heat of vaporization for ethanol is 0.826 kj/g . calculate the heat energy in joules required to boil 50.95 g of ethanol.
Boiling ethanol requires 77.77 kJ of heat energy in joules.
How much is heat of vaporization?The amount of heat (540 cal/g) required to vaporize one gram of water into one gram of water vapor is known as the heat of vaporization or condensation.
The given parameters:
ethanol's heat of vaporization is equal to 0.826 kJ/g of its mass, which is 94.15 g.
The following formula is used to determine how many joules of heat are needed to boil the ethanol:
Q = 94.15 x 0.826
Q = 77.77 kJ
As a result, 77.77 kJ of heat energy are needed to boil the ethanol.
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in the combustion of ethane, 2c2h6(g) 7o2(g) 4co2(g) 6h2o(g), what volume of o2 will be required to react completely with 27.6 l of c2h6?
The volume of O₂ will be required to react completely with 27.6 l of C₂H₆ is 96.6liters.
What exactly does "combustion response" mean?The release of energy occurs as a result of the chemical reaction known as combustion, in which an oxidizing agent and fuel combine to undergo oxidation (usually in the form of heat).
Given equation,
2C₂H₆(g) 7O₂(g)→ 4CO₂(g) 6H₂O(g)
According to the following equation, 7 moles of oxygen are required for the full combustion of 2 moles of ethane.
Avogadro's law states that for a complete combustion of 2 volumes of ethane, 7 volumes of oxygen are required. This means that for complete combustion, 7 liters of oxygen require 2 liters of ethane.
So, the volume of oxygen that can react with 27.6 liters of ethane
= 27.6(7/2) = 96.6liters.
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What determines the reactivity of metals?.
Metal reactivity is primarily influenced by four factors: nuclear charge, atoms or ions, shielding effect, and subarea arrangement (of electrons).
Where can one find metals?The continental surface is where most pure metals are found. They are discovered in ores, which are solid materials from which metals and minerals can be extracted. The most of the planet's iron size, which compensates over a percent of it's own mass, is located in its core.
How do metals become made?Extraction of the unprocessed ore from the earth is the initial step in the production of metal alloys. The non-metal components, like as rock and rubbish, are eventually deleted from the ore during processing. The subsequent melting and combining of various metal components yields metal alloys.
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Select the correct answer.
A student has a solution of sodium nitrate and believes it is saturated. Which statement provides the best evidence that the solution is saturated?
A.
When more water is added, the appearance of the solution doesn’t change.
B.
When some of the water evaporates, all of the sodium nitrate remains dissolved.
C.
When a small amount of sodium nitrate is added, a large amount precipitates from the solution.
D.
When additional sodium nitrate is added, it all settles to the bottom of the container.
E.
When the temperature of the solution is increased, additional sodium nitrate can be dissolved.
A student has a solution of sodium nitrate and believes it is saturated. The statement provides the best evidence that the solution is saturated is: "When additional sodium nitrate is added, it all settles to the bottom of the container." (Option D)
What is sodium nitrate?The chemical compound with the formula NaNO 3 is sodium nitrate. To differentiate it from regular saltpeter, potassium nitrate, this alkali metal nitrate salt is sometimes known as Chile saltpeter. Nitratine, nitrate, and soda niter are all names for the mineral form.
If more solute is added and it still does not dissolve, the original solution has become saturated. If the solute supplied dissolves, the previous solution was unsaturated.
A saturated solution is a chemical solution with the maximum level of bound solvent. The excess solution will not dissolve in a saturated solution. The amount of fluid that can be added to a solvent to form a saturated solution depends on a variety of variables.
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a piece of limestone was added to 1 DM cube of 0.1 Mol per dmcube hydrochloric acid after effervescence and stopped 31.25 cm cube of the resulting solution required 25 cm cube of 0.05 moldm cube sodium hydroxide for complete neutralization calculate the mass of limestone added (caco3 = 100,hcl=36.5,naoh=40).
The mass of limestone added is 4.8 g.
The equation is given as:
CaCO₃ + 2HCl ----> CaCl₂ + H₂O + CO₂
no. of moles of HCl = 0.1 mol
moles of HCl react with NaOH = 0.1 × 31.25 / 1000
= 0.00312 mol
moles of HCl react with CaCO₃ = 0.1 - 0.00312
= 0.096 mol
from the above equation 1 mol of CaCO₃ react with 2 mol of HCl
moles of CaCO₃ = 0.096 / 2 = 0.048 mol
mass of CaCO₃ = moles × molar mass
= 0.048 × 100
= 4.8 g
Thus, a piece of limestone was added to 1 DM cube of 0.1 Mol per dm cube hydrochloric acid after effervescence and stopped 31.25 cm cube of the resulting solution required 25 cm cube of 0.05 mol dm cube sodium hydroxide for complete neutralization. the mass of limestone added is 4.8 g.
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Which of the statements about the strands of a newly replicated dna molecule is correct?.
Option D. One strand is new and the other is from the original molecule, about the strands of a newly replicated DNA molecule is correct
Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around every different to form a double helix wearing genetic commands for the development, functioning, growth, and reproduction of all recognized organisms and plenty of viruses. DNA and ribonucleic acid are nucleic acids.
DNA replication is the organic manner of manufacturing two equal replicas of DNA from one unique DNA molecule. DNA replication happens in all dwelling organisms appearing because the most important part of biological inheritance
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Disclaimer:- your question is incomplete, please see below for the complete question.
Which of the statements about the strands of a newly replicated dna molecule is correct?.
A. Both strands contain some nucleotides from the original molecule.
B. The sugar-phosphate chains are conserved and new bases are inserted between them.
C. The base pairs are conserved and new sugar-phosphate backbones are built upon them.
D. One strand is new and the other is from the original molecule.
E. Both strands are made up of newly assembled nucleotides.
why is density referred to as a characteristic property of matter? the density of a substance is the same regardless of the mass and the volume of the substance at a given temperature. the density of a substance changes when you change the mass of the substance at a given temperature. the density of a substance changes when you change the volume of the substance at a given temperature. the density of a substance is the same regardless of the temperature of the substance.
Density is referred to as a characteristic property of matter because Option A. the density of a substance is the same regardless of the mass and the volume of the substance at a given temperature.
Density is the substance's mass consistent with the unit of quantity. The symbol most customarily used for density is ρ, despite the fact that the Latin letter D can also be used. Density is the size of ways tightly a cloth is packed together. it's far defined as the mass consistent with unit quantity.
ρ = m/V, wherein ρ is the density, m is the mass of the item and V is the quantity of the object.
The density of a liquid is a measure of how heavy it is for the quantity measured. in case you weigh the same amounts or volumes of two one-of-a-kind beverages, the liquid that weighs extra is greater dense.
The density is of two types, one is absolute density, and the alternative is relative density. Relative density is also called unique gravity, which is the ratio of the density of a material to the density of a reference material. typically, the reference fabric is water.
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Both suspensions and colloids are heterogeneous mixtures. Define and characterize a suspension, listing similarities and differences to a colloid. Give several examples of suspensions.
Suspensions are similar to colloids in that they are both heterogenous mixtures and are not true solutions.
Suspensions differ from colloids in that the particle sizes are larger and settle when left to stand.
Some examples of suspensions are smoke and dust particles in the air.
What are suspensions and colloids?Suspensions are a heterogeneous mixture of substances in which one substance is dispersed or distributed throughout a second phase. The particles of a suspension when left to stand will settles over time.
Some examples of suspension are dust particles dispersed in air, a gas.
Other suspensions may be solids dispersed in liquids such as in milk of magnesia.
Colloids or false solutions are a heterogeneous mixture of substances that are dispersed throughout a second medium and in which the particles do not settle when left to stand. The articles of a colloid can not be seen with the unaided eye.
Examples of colloids are gels, emulsions, and sols.
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Show how you might synthesize this compound from an alkyl bromide and a nucleophile in an sn2 reaction.
The 3-bromo-2-methylpentane is the alkyl bromide and azide is the nucleophile.
The bromine leaving group initiates the reaction, which is then followed by an assault on the electrophilic carbon at the bromine leaving site by the nucleophile azide.
In this reaction, azide and alkyl bromide mix to form the desired product using the SN2 mechanism. Through a coordinated process, the bromine atom is simultaneously removed and sodium azide, acting as a nucleophile, attacks the carbon-containing bromine group to produce the SN2 product.
As a result, we can infer that azide is the nucleophile and 3-bromo-2-methylpentane is the alkyl bromide.
A chemical species known as a nucleophile donates an electron pair in response to another chemical species in order to create a chemical bond. An electrophile can be any molecule, ion, or atom that is in some way electron-deficient. A nucleophile typically has one electron pair and is negatively charged or neutral.
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Which list arranges the elements Na, Li, K, Rb, and Cs in order of increasing lonization energy (from left to right)?
A)Cs, Rb; K; Na; Li
B)Cs; Li, Na, K; Rb
C)Na, Li; K; Rb; Cs
D)Li, Na, K; Rb; Cs
The elements Na, Li, K, Rb, and Cs in order of increasing ionization energy is Li, Na, K, Rb, Cs. The correct answer is option D.
What is ionization energy?
The ionization energy is the minimum energy which is required to remove a valence electron from an isolated gaseous atom, molecule or a positive ion. This measures the ability of an atom to form an ion by losing an electron to take part in a chemical reaction.
As we move down the group, the ionization energy decreases due to the increase in the atomic size of an element. So, the electrons are far from the nucleus and loosely bound to the nucleus.
Therefore, it is easy to remove an electron from the elements which are found lower in the group. So, the order of increasing ionization energy is Li, Na, K, Rb, Cs, the correct answer is option D.
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during a titration of an acid with a base, you are often asked to identify the endpoint. what is the correct definition of the endpoint?
The phase of a colorimetric titration when the indicator changes color as a result of the reaction The equivalence point and the endpoint are not the same.
Acid-Base Titration: What is it?In order to ascertain the concentration of a certain species in an unidentified analyte solution, titration is a type of quantitative analysis. A specific chemical reaction occurs between a titrant reactant and an analyte reactant in every titration analysis. This happens through ionized hydrogen (proton) transfer in acid-base titration. The base/acid analyte is put in the flask below the burette, and the acid/base titrant is put in the burette. The analyte-containing flask is slowly titrated, and the reaction's progress is gauged by the pH of the resulting solution. Using a pH meter, this pH can be assessed, or more frequently by using colorimetric titration and an appropriate indicator chemical. Depending on the technique employed, every acid-base titration will proceed to the endpoint or equivalence point.
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vinegar is a solution of acetic acid in water. if a 225 mlml bottle of distilled vinegar contains 30.1 mlml of acetic acid, what is the volume percent (v/v) of the solution?
The ratio of 30.1 ml of acetic acid to 225 ml of vinegar, expressed as a volume percent (v/v) is 13.38%.
To calculate the volume percent (v/v) of the solution in a 225-ml bottle of distilled vinegar, substitute the following numbers for the formula of volume percent:
Volume of solute/volume of solvent is expressed as a percentage (v/v%); 100 v/v = 30.1 ml/225 ml, or 13.38%.
The ratio of the volume of a solute present in a solution to the volume of the solution as a whole is known as the volume percent of a solution.
In addition, this fraction needs to be increased by 100 since this sort of concentration, which is commonly computed for liquid- and gas-phase solutions.
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Light behaves as if it were a stream of small particles, called ________, each having an amount of energy called a ________.
Answer:
Photons; Quantum
Explanation:
this are the answrs in order
Which of the following are compounds? (Select all that apply.)
Ne
Cl.2
NaCl
CO.2
Answer:
Explanation:
CO2 and NaCI are both compounds.
which general trend is found in grouo 3 as the elements are considered in order of increasing atomic number
Answer:
2
Explanation:
2 is correct because the number of charges on the nucleus increases, causing a stronger attraction for the bonding of electrons (and thus greater electronegativity).
what is the concentration, in m/v%, of a solution prepared by dissolving 65.4 g nacl in a total volume of 3.7 l of solution?
The concentration, in m/v %, of a solution prepared by dissolving 65.4 g NaCl in a total volume of 3.7 l of solution is 1.76 %.
The data given as follows:
mass of the NaCl = 65.4 g
volume of the solution = 3.7 L = 3700
concentration in m/v % is means that : mass by volume percentage and is given as :
concentration in m/v % =(mass of solute / volume of the solution ) × 100 %
= ( 65.4 / 3700 ) × 100 %
= 1.76 %
Thus, The concentration, in m/v %, of a solution prepared by dissolving 65.4 g NaCl in a total volume of 3.7 l of solution is 1.76 %.
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. what products would you expect from oxidation of the following compounds with cro3 in aqueous acid? with pyridinium chlorochromate (pcc, c5h6ncro3cl) in dichloromethane? (a) 1-hexanol (b) 2-hexanol (c) hexanal
The oxidation of a) 1-hexanol b) 2-hexano c) hexanal with CrO3 in aqueous acid gives 1-hexanoic acid, 2-hexanone and 1-hexanoic acid respectively. The oxidation with PCC gives 1-hexanaldehyde, 2-hexanone and no reaction respectively.
What is PCC?
PCC is also called as pyridinium chlorochromate which is a yellow-orange salt. this is primarily used for the oxidation of alcohols which gives carbonyl compounds as products. It is one of the highly effective oxidizing agents for alcohols.
The oxidation of alcohols with CrO3 gives carbonyl compounds like aldehydes and ketones. With primary alcohol and aldehydes it gives carboxylic acid, whereas with secondary alcohol it gives ketones as products. PCC with primary alcohols give aldehyde, with secondary alcohols give ketone and with aldehyde there is no reaction.
Therefore, CrO3 with 1-hexanol and hexanal gives 1-hexanoic acid, with 2-hexanol gives 2-hexanone. PCC with 1-hexanol gives 1-hexanaldehyde, 2-hexanol gives 2-hexanone and with hexanal there is no reaction.
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how many grams of hcl are needed to make 200.0 ml of a 3.0 m solution?
The number of moles of HCl in 200 ml of 3 molar solution is 0.6 moles. The mass of HCl needed to prepare 200 ml of 3 molar solution is 22.5 g.
What is molarity?Molarity is a concentration term used to express the amount of solute in a solution. It is the ratio of number of moles of solute to the volume of solution in liters.
Given that the volume of HCl solution to be prepared is 200 ml or 0.2 L. The number of moles of HCl in 0.2 L of 3 molar solution is :
number of moles = molarity × volume in liter
= 0.2 × 3M
= 0.6 moles
The molar mass of HCl is 37.5 g/mol. Thus mass of 0.6 moles is 0.6 × 37.5 = 22.5 g.
Therefore, the mass of HCl needed to prepare the solution is 22.5 g.
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Answer: 21.876
Explanation:
M = mol/L
M = 3
mol = x
L = 0.2 (200 mL is 0.2 L)
So,
3 = x/0.2 = 0.6 mol
Then,
0.6 multiplied by 36.46 = 21.876
What causes soil damage and loss?
Answer:
Mosty Oil but it depends there is lots of things that can damage soil
Explanation:
Answer:
Sheet erosion by water, wind erosion, and rill erosion
How much heat would be needed to change the temperature of 100g water from 10°C to 50°C?
10.45 kJ heat would be needed to change the temperature of 100g water from 10°C to 50°C.
Temperature is the degree of hotness or coldness expressed in phrases of any of several scales, inclusive of Fahrenheit and Celsius. Temperature shows the direction in which warmness electricity will spontaneously waft i.e., from a hotter body to a colder frame.
calculation:-
Heat = ms× change in temperature.
= 100 × 4.2 × 50-10
= 100 × 4.2 × 40
= 10.45 J
The heat of an item is the whole energy of all of the molecular movement inside that item. Temperature is the degree of the thermal power or common heat of the molecules in a substance.
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Earth's atmosphere exerts a force of 124,500 N on a kitchen table with an area of 1.5 m squared. What is the pressure in pascals?
Answer:
Pressure = 83,000 Pascals
Explanation:
Force exerted by Earth's atmosphere = 124,500 N
Area of kitchen table on which force is exerted = 1.5 m²
Formula:
[tex] \boxed{ \rm Pressure= \dfrac{Force}{Are}}[/tex]
By substituting values in the formula we get:
[tex] \rm \implies Pressure= \dfrac{124500}{1.5} \\ \\ \rm \implies Pressure=83000 \: Pa[/tex]
What volume of ideal gas is occupied by 4.70 moles of that gas at 50 degrees Celsius and a pressure of 0.980 atm?
Answer in Liters. Round to one decimal place.
As a result, it is easier to calculate the volume occupied by any number of moles of a given gas when you are aware of its molar volume at a particular temperature and pressure.
Why would knowing the molar volume of a gas be important?The molar volume of a gas specifies the volume that one mole of that particular gas fills at a given temperature and pressure.The most prevalent illustration is the molar volume of a gas at STP (Standard Temperature and Pressure), which is equal to 22.4 L for 1 mole of any ideal gas at a temperature of 273.15 K and a pressure of 1.00 atm.Therefore, knowing that 1 mole occupies 22.4 L makes it easy to calculate the volume occupied by any number of moles of an ideal gas when given these values for temperature and pressure.V = n ⋅ V molar
The volume will be for 2 moles of a gas at STP.
2 moles⋅22.4L/mol=44.8 L
The volume will be for 0.5 moles.
0.5moles⋅22.4L/mol=11.2L , and so forth.
The ideal gas law P V = n R T is used to determine a gas's molar volume.
PV=nRT→V=nRT/P→Vn=RT/P
Consider the situation where you were requested to calculate the gas' molar volume at 355 K and 2.5 atm of pressure. Because molar volume refers to the space that one mole occupies, you'd receive
V/1 mole=0.082(L⋅atm/mol⋅K)⋅355K/2.5atm=11.6L/mol
1 mole takes up this volume at 355 K and 2.5 atm. It is evident that under these circumstances, any number of moles' volume can be easily calculated:
2moles⋅11.6L/mol=23.2L
0.5moles⋅11.6L/mol=5.8L and so forth.
As a result, it is easier to calculate the volume occupied by any number of moles of a given gas when you are aware of its molar volume at a particular temperature and pressure.
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What are amino acids and proteins known as?.
These amino acids are arranged in a long chain and joined to one another by covalent peptide bonds to form proteins (Figure 3-1). Polypeptides are another name for proteins.
Describe amino acids in simple terms.Amino acids are the building blocks of proteins .Proteins and amino are the basic constituents of all living things. Amines are result of the digestive or breakdown of proteins. The human body uses amino acids to make proteins that help with food dissection.
What amino acid is beneficial to you?The benefits of amino acids for many body processes are numerous. You need amino acids for a variety of functions, including food digestion, strengthening soft tissues, supplying energy, and more. It's crucial to consume enough amino acids.
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A weak acid indicator hin is blue while its conjugate base in- is green. ka,in for the indicator is 2.3 x 10^-5 over what ph range does the indicator change color? lower ph upper ph what is the [h ] in a solution with ph
The indication of blue color in pH paper means the solution is basic. And green colour represents a neutral solution. The [H+] indicates the hydrogen ion concentration of the solution.
What is pH?pH of a solution is the measure of H+ ion concentration in a solution. This indicates the acidity or basicity of a solution. Mathematically pH is the negative logarithm of H+ ion concentration.
A pH of 7 indicates the solution is neutral. A pH more than 7 is basic and the pH below 7 is acidic. Acidic solution gives red-yellow colour in pH scale in a range of 1- 6. The green colour indicates neutral pH of 7.Blue colour indicates basic solutions with a pH range of 8-14.
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what is the concentration of a solution formed by diluting 160 ml of 12.0 m hcl solution to 660 ml? m
The concentration of a solution formed by diluting 160 ml of 12.0 m hcl solution to 660 ml is 2.9 M.
given that :
The concentration , M1 = 12.0 M
the volume , V1 = 12.0 mL = 160 mL = 0.160 L
The volume V2 = 660 mL = 0.660 L
concentration , M2 = ?
using the dilution law we get :
M1 V1 = M2 V2
M2 = M1 V1 / V2
M2 = (12 × 0.160 ) /0.660
M2 = 2.9 M
Thus, after diluting the solution with 160 mL of 12 M HCl then the concentration of the solution formed = 2.9 M.
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how would you expect the pressure of a gas to change if suddenly the intermolecular forces were repulsive rather than attractive? how would you expect the pressure of a gas to change if suddenly the intermolecular forces were repulsive rather than attractive? increase decrease remain the same
If the intermolecular forces of a gas is repulsive rather than it is attractive, then the pressure of the gas is increased.
According to the Boyle's law, product PV is constant at any temperature. So, the increase in pressure of the gas decreases the volume of a gas because molecules come closed together. When the gas is compressed, gas molecules are coming in each other's way, which gives rise to a strong repulsive force. The intermolecular force in the molecule is repulsive because molecules goes away from each other, which leads to increase in the pressure. Intermolecular force is defined as the force which interfere in the interaction between molecules.
Therefore, the pressure of a gas is increased if the intermolecular forces of a gas is repulsive rather than it is attractive.
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Elements are organized on the periodic table based on their properties. Which statement correctly predicts and explains the chemical reactivity of two metals?
Lithium (Li) is less reactive than potassium (K) because the valence electrons in lithium atoms are closer to the nuclei and harder to remove. Option D
What is the periodic table?The periodic table has to do with an arrangement of the elements in their order of reactivity. We know that the periodic table is arranged in groups and periods. The groups are the vertical portions while the periods are the horizontal portions.
Given that the reactivity would depend on the position of an element in the periodic table, we would look at where the elements that are to be considered are found in the periodic table.
We know that the elements that occur down the group for the metals are more reactive because they are more shielded thus they leave the attractive force of the nucleus much more easily.
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Missing parts;
Elements are organized on the periodic table based on their properties. Which statement correctly predicts and explains the chemical reactivity of two different metals? Barium (Ba) is less reactive than calcium (Ca) because the valence electrons in calcium atoms are farther from the nuclei and harder to remove. Strontium (Sr) is more reactive than magnesium (Mg) because the valence electrons in strontium atoms are farther from the nuclei and harder to remove. Rubidium (Rb) is more reactive than sodium (Na) because the valence electrons in sodium atoms are closer to the nuclei and easier to remove. Lithium (Li) is less reactive than potassium (K) because the valence electrons in lithium atoms are closer to the nuclei and harder to remove.
Hydrogen gas can be produced by reacting aluminum with sulfuric acid. How many miles of sulfuric acid are needed to completely react with 10.0 mol of aluminum? 2al(s)+3h2 so4 (sq) +3h2(g). stuck on my last answer help!
Taking into account the reaction stoichiometry, 15 moles of H₂SO₄ are needed to completely react with 10.0 mol of aluminum.
Reaction stoichiometryIn first place, the balanced reaction is:
2 Al(s) + 3 H₂SO₄(aq) → Al₂(SO₄)₃(aq) + 3 H₂(g)
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
Al= 2 molesH₂SO₄= 3 molesAl₂(SO₄)₃= 1 moleH₂= 3 molesMoles of H₂SO₄ requiredThe following rule of three can be applied: If by reaction stoichiometry 2 moles of Al react with 3 moles of H₂SO₄, 10 moles of Al react with how many moles of H₂SO₄?
moles of H₂SO₄= (10 moles of Al× 3 moles of H₂SO₄) ÷ 2 moles of Al
moles of H₂SO₄= 15 moles
Finally, 15 moles of H₂SO₄ is required.
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Suppose two equal mass cars traveling with equal speeds in opposite directions collide head on and stick together. What fraction of the energy is dissipated?.
Suppose two equal mass cars traveling with equal speeds in opposite directions collide head on and stick together then fraction of the energy is dissipated is all kinetic is dissipated
A collision which is inelastic is one in which the internal energy changes and the collision is an example of a perfectly inelastic collision and the final velocity after the collision is zero
Here given data is
The mass of one car = the mass of the second car in the collision = m
The type of collision = inelastic collision
The speed of each of the cars in the collision = v and -v
And in an inelastic collision
m × v₁i + m₂ ×v₂i = (m₁ + m₂)×vf
Therefore we get
m × v₁i - m × vi = 0 = 2 × m × vf
Which give
vf = 0
The collision is an example of a perfectly inelastic collision and the final velocity after the collision is zero
The change in the energy is
ΔK.E = K.E final - K.E initial
K.E initial = 0.5mv² + 0.5mv² = mv²
ΔK.E = 0.5×(2×m)×0-0.5mv²+0.5mv² = -mv²
ΔK.E = -mv²
And the negative sign stand for energy given out and which give
The energy dissipated = mv² that is initial kinetic energy
Therefore all kinetic energy is dissipated
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stories about the dangers of dihydrogen monoxide circulate occasionally online, and peoplecall for it to be banned. what is the formula for this compound?
H₂O is the formula for this compound.
How is H₂O prepared?
A water molecule (dihydrogen monoxide) is made up of two hydrogen atoms and one oxygen atom. But you can't just plonk two hydrogen atoms on top of an oxygen atom. The real water-making reaction is a little more complicated: 2H2 + O2 = 2H2O + Energy.
In English, the equation states that two molecules of diatomic hydrogen (H2) must be joined with one molecule of diatomic oxygen to generate two molecules of water (H2O) (O2). In the process, energy will be released.
"This reaction (2H2 + O2 = 2H2O + Energy) has been known for two centuries, but no one has made it work in a homogenous solution until now," said Thomas Rauchfuss, a chemical professor at the University of Illinois and the paper's corresponding author.
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