It can be a compound or a single element. An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. There are about 117 elements, but carbon, hydrogen, nitrogen and oxygen are only a few that make up the largest portion of Earth.
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Answer:
14 solubility in 200 gram of water at 20 c
Explanation:
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Answer:
you sure it is the right sign your using
