C1 - Compounds
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14 Terms
What is a compound?
A substance made up of 2 or more types of atom chemically bonded.
What does making bonds involve?
Giving away, taking or sharing electrons.
What happens when elements react?
Atoms join other atoms to make at least one new substance.
Are the properties of a compound the same as those of the original elements?
No, they are usually completely different.
How are compounds represented?
In formulae with the symbols of each atom and the quantities of them, e.g. CO2 contains 1 carbon atom and 2 oxygen atoms.
What is the chemical formula for ammonia?
NH3
What is the chemical formula for water?
H2O
What is the chemical formula for nitric acid?
HNO3
What is the chemical formula for sodium chloride?
NaCl
What is the chemical formula for carbon monoxide?
CO
What is the chemical formula for hydrochloric acid?
HCl
What is the chemical formula for sodium hydroxide?
NaOH
What is the chemical formula for calcium chloride?
CaCl2
What is the chemical formula for sodium carbonate?
Na2CO3
