Which term describes the sum of the number of protons and neutrons in an atom?

How many moles of CuO would be required to produce 12 mol of copper metal in this reaction? CuO (s) + H2 (g) - - Cu (s) + H2O (g)

What is the mass of the helium nucleus?

If 10.95 g K2SO4 is used up in a reaction, How many atoms would that be?

What are the most reactive nonmetals found on the periodic table?

Metals show a wide range of chemical behavior. Give examples of that variation by describing some common properties of calcium, gold, iron, and sodium.

HNO3 + H2O > H3O (aq) + NO3 - (aq)

What do you get when you mix lemons with gunpowder

What is the mass of 9.92*10^24 molecules of methanol?

How many moles of h2so4 are required to react with 6.80 miles of al2o3

Which explanation best describes a wave? A. a disturbance that travels through a medium with a transfer of energy and matter B. a disturbance that travels through a medium without a transfer of energy and matter C.