IGCSE/CXC Relative formula mass and moles Online Test

The mass number is

What is the atomic number?

The mass of a molecule is

The relative formula mass of a molecule of oxygen is

The number of particles in one mole of hydrogen

Which has the most particles in 1 mole Magnesium or Bromine

One mole of a substance is its relative atomic mass, or relative formula mass, in

The mole of an atom =

At room temperature and normal pressure We say: 1 mole of gas =

What is the mass of 5 moles of nitrogen atoms?


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