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Chemistry Unit 3.
1. How did John Newlands try to arrange elements in 1864?
By atomic mass. He had a `law of octaves', meaning every eighth element had similar properties (in
2. Why was Newlands' work not accepted?
The `law of octaves' only worked for the first 15 elements,…

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18. State two ways to increase the solubility of a gas.
a) Decrease in temperature
b) Increase in pressure
19. How will global warming harm sea life?
Less oxygen will be able to dissolve in the water as the temperature increases, meaning sea life will not
be able to respire…


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