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(a) What factors determine whether a collision between two molecules will lead to a chemical reaction?
(b) According to the collision model, why does temperature affect the value of the rate constant?
(c) Does the rate constant for a reaction generally increase or decrease with an increase in reaction temperature?
The molar heat of fusion of water is 6.01 kj/mol. How much heat energy is required to melt one ice cube in a soft drink to form liquid water a 0 degree celcius, if the ice cube has a mass of 18.9 g?
How many electrons are around the central atom in the expanded valence in I3-; where the 3 is subscript and the negative sign is superscript
Are there ionic bonds, covalent bonds, or both present. Explain how many oxygen atoms are present per formula unit of this compound. Explain what is the mass percent of iron in this compound
A certain sample of coal contains 1.2% sulfur by mass. While the coal is burned the sulfur is converted to sulfur dioxide (SO2). To prevent air pollution, SO2 is treated with calcium oxide (CaO) to form calcium sulfite (CaSO3) as shown in the reac..
Given a 400mg sample of Thorium 231 decomposes via beta emission with a half life of 25.5hours, how long would it take,in day, for the sample to deca down to 25mg
If this reaction mixture is at equilibrium, predict whether each of the following will result in the formation of additional hydrogen gas, the formation of less hydrogen gas, or have no effect on the quanity of hydrogen gas
When 30 mL of a 365 mL stock solution containing 1.8999999999999997 M AlCl3 is diluted to 81 mL, how many moles of Cl- are in the new solution?
the property of mercury that allows it to form an amalgam with gold has been used in thee mining industry for hundred of years. during the boom in california in the 19th century, it is estimated that 3.0X10^6 pounds of gold were produced using thi..
Identify the anions that react with silver nitrate to form precipitates that do not dissolve when acidified with nitric acid.
For the titration of 40.0 mL of 0.250 M acetic acid with 0.200 M sodium hydroxide, determine the pH when
Explain why the Rf values changed when the eluant was changed from 100% petroleum ether to a 95:5 mixture of petroleum ether-ethyl acetate. Why UV light is not a useful visualization technique in every circumstances?
A 330 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 626 mmHg. Calculate the moles of Ar present.
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