stoichiometry practice 2

for each of the problems below:

a. write the balanced chemical equation.

b. identify the given (with units) and what you want to find (with units).

c. show set up with units. check work, give final answer with units and label.

1. using the hoffman apparatus for electrolysis, a chemist decomposes 36 g of water

into its gaseous elements. how many grams of hydrogen gas should she get

(theoretical yield)?

bal. equation:

ven: 3log of water

ant;

me noww

Gas is a type of carbon, i think lol

Ithe undersigned only for use your own email and delete any and copies and of the itself and to be there is a good timewhat does a decrease in temperature indicate about the molecules in a sample of liquid water? decreased chemical energy of the moleculesdecreased kinetic energy of the moleculesincreased chemical energy of the moleculesincreased kinetic energy of the moleculeshow does a sample of helium at 15 â°c compare to a sample of helium at 215 k? the helium at 15 â°c has a higher average kinetic energy than the sample at 215 k.the helium at 15 â°c has lower nuclear energy than the sample at 215 k.the helium at 15 â°c has slower-moving atoms than the sample at 215 k.the helium at 15 â°c has smaller atoms than the sample at 215 k.