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vampirchik [111]
4 years ago
11

Help please!

Chemistry
1 answer:
lora16 [44]4 years ago
5 0
The answer is <span>B. They can be created by chemical reactions.
</span>

A compound is a substance composed of two or more different atoms chemically bonded to one another, for example, water (H₂O) consists of 2 atoms of hydrogen (H) and 1 atom of oxygen (O), so it is the compound. Water is created by chemical reaction:

2H₂ + O₂ → 2H₂O

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