Chemistry Unit 1.1, 1.2 and 1.3
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What is a compound?
A substance made of two or more different kinds of atoms, chemically joined.
What are atoms made of?
Electrons, Neutrons and Protons.
What do chemical reactions involve?
Gaining, losing or sharing outer shell electrons.
What is the equation for the thermal decomposition of calcium carbonate?
Calcium carbonate ---> calcium oxide + carbon dioxide
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