Look at the picture and answer it. i appreciate it: )

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.

In which of these cases are the two wave points considered to be in phase with each other?

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!