An atom has a mass number of 30 and 16 neutrons. what is the atomic number of this atom? express your answer as an integer.

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?

Which substance has non polar covalent bonds