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horizontal tunnels that are dug from the working shaft to the ore body in a mine.
when radioactive particles collide with air molecules, they can cause the molecules to lose or...
a molecule that is so big that we can see it, e.g. diamond.
a chemical cell in which electrical energy from a battery is used to produce chemical reactions...
electrons that have become removed from the atom and form a âseaâ or region to which the...
an electrochemical cell has two half-cells: one is where oxidation takes place and the other...