One mole of CO₂ contains _______.

N_A = _________ atoms mol^-1.

The phlogiston theory was suggested for _______ reaction.

The number of molecules in 16 g of oxygen gas is _______.

SI unit of velocity is _______.

_______ CANNOT be carried out in a lab.

_______ chemistry deals with the chemistry of elements other than carbon and of their compounds.

1 amu is equal to _______.

If two or more phases are present in a mixture then it is called a _______ mixture.

One mole of oxygen gas weighs _______.