Answer:
sodium is stored under oil
Explanation:
to prevent reactions with oxygen
To confirm the results of the same experiment to see if they are similar
Calcium carbonate will be formed which is insoluble in water.
The answer is a) K and CrO4 only.
Answer:
Because the rock underwent lava and heat/pressure transformation. They are cooled and heated by magma, and then under go pressure. No fossils would be found in those.
Explanation:
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Answer:
the molecule is formed by covalent bond , and each hydrogen atom forms a single bond with sulphur atom.
