Chemistry Practice (Interactive)

What is the relative atomic mass of an atom that has 11 protons, 11 electrons, and 12 neutrons?

Elements in the same group of the periodic table have similar chemical properties because:

Which type of bonding involves the transfer of electrons from one atom to another?

Why can graphite conduct electricity even though it is a form of carbon?

What is the relative formula mass of CaCO3? (Relative atomic masses: Ca = 40, C = 12, O = 16)

In the reaction 2H2 + O2 -> 2H2O, what mass of water is produced from 4 g of hydrogen? (Relative atomic masses: H = 1, O = 16)

Which of the following metals will react most vigorously with dilute hydrochloric acid?

At the cathode during the electrolysis of molten lead(II) bromide, which substance is produced?

What is the general formula for alkanes?

Which type of polymerisation joins many small molecules (monomers) together without producing any other by-products?