Chemistry

Question	Answer
What is salt	A natural resource that can be extracted from the ground or sea
Acid+Metal	salt+hydrogen
Acid+metal oxide	salt+water
Acid+metal hydroxide	Salt+water
Acid+metal carbonate	Salt+water+carbon dioxide
Hydrochloric acid Sulfuric Acid Nitric acid Phosphoric Acid	Metal chloride Metal sulfate Metal nitrate Metal phosphate
What were the results from the practical?	You can easily extract metals from ores
What happens to lead oxide+carbon?	Carbon replaces the lead to make carbon dioxide+lead
What is reduction and oxidization?	Reduction is the loss of oxygen and oxidization is the addition of oxygen
How much of the different gases are in the atmosphere (a thin layer of gas around the earth)?	Nitrogen - 78% Oxygen - 21% Argon - 1% Carbon dioxide - 0.04% Water vapour - varies
What was early earth like?	A hot, dry, volcanic and inhabitable place.
What gases were in early earths atmosphere?	Water vapour - 74% Carbon dioxide - 12 Nitrogen - 5% Other gases - 9%
What made earth like it is today?	Temperatures eventually fell causing water vapour to condense and form oceans. Some of the carbon dioxide dissolved into the oceans . Life on earth began to evolve - plants used photosynthesis
Photosynthesis equation?	CO2+H2O = O2+C6 H12 O2

Resource summary

	Created by Eleanor Bolt about 9 years ago