4. NaOH
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This is not chemistry but it's A, off top.
Its molecule contains one oxygen and two hydrogen atoms.
Explanation:
Water is a chemical substance with the chemical formula H2O. Water is a chemical substance with the chemical formula H2O. Its molecule contains one oxygen and two hydrogen atoms connected by covalent bonds.
Hope this helps ; )
Answer:
Trade winds
Explanation:
I am not sure
Answer:
speed
Explanation:
the vector is an arrow that shows both <em><u>speed</u></em> and direction of an object
