HELP ME PLEASE PLEASE PLEASE i need to show my work too!!
In the following synthesis of water reaction:

2 H2(g) + O2 (g) --> 2H2O (l)

If you start the reaction with 150.0 L of oxygen and 150.0 L of hydrogen,

a.) Do stoichiometry to identify the limiting reactant

b.) Do stoichiometry to identify the excess reactant?

c.) How many grams of water can be produced?

d.) Calculate the percent yield if you actually produce 111.5 grams of water while performing this reaction in the lab.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol