Answer: It is Mole.
Explanation:
Mole is the SI unit of measurement used to measure the number of things, usually atoms or molecules. One mole of something is equal to 6.02214078×1023 of same things (Avogadro's number).
The answer is A (The ability to react with oxygen)
Answer:
No.
Explanation:
The balanced equation is,
2HCl + Na2S -> H2S + <u>2</u>NaCl
