How man molecules, Hydrogen atoms and Oxygen atoms are there in this equation 2 H2O + H2O + H2O?​

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 is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate