Calcium and magnesium belong to the group of the periodic table because both?

Which of the substances is non-polar?

Which of the following pairs of components have the same molecular mass?

[ H = 1.0, C = 12.0, O = 16.0 ]

When an equilibrium is established between dissolved and undissolved solutes, the solution is said to be?

How many moles of carbon(iv)oxide contains 16.0g of oxygen?

[ C = 12.0, O = 16.0 ]