3 years ago

Which chemical is a compound ?

2 answers:

7 0

The answer is D, Hydrochloric acid.

-Hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.
- Helium is a chemical element with symbol He and atomic number 2.
-Nitrogen is an element, not a compound. It is found in nature as nitrogen gas, also called dinitrogen, with the chemical formula N2 , and makes up 78% of the atmosphere.

lord [1]3 years ago

4 0

Answer:

It is D

Explanation:

All A,B, and C are a element so D.

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