The purpose of this practical is to prepare a pure, dry sample of a soluble salt from an insoluble oxide or carbonate The acid and solid need to be chosen. Use hydrochloric acid to make a chloride, ...
The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.
The team genetically engineered fruit flies to make naked mole rat cGAS and found that they lived 70 days—10 days longer than ...
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