How much heat does potassium nitrate absorb when dissolved in water

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.

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

Which compound contain an iron with a 3+ charge