1. An atom has 6 protons, 6 neutrons, and 6 electrons. What is the charge of the atom's nucleus?

A.+6
B.+12
C.-6
D.-18

How does decreasing the gas volume affect the pressure of a gas?

Geothermal energy for industrial use is available almost anywhere. a.true b.false

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?