Please help me i will give brain list

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

For the following, determine the type of reaction and then give products.

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas