Is Ca +O2 ?-->CaO balanced ? explain why or why not

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.