Created by Eleanor Bolt
almost 7 years ago
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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 |
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