I think the best answer would be D. Dolphin!
This compound is also known as Barium Carbonate. 1 mole is equal to 1 moles BaCO3, or 197.3359<span> grams.</span>
1 Answer. SCooke · Stefan V. 1.2×1023 molecules. Hope this helps
Resistance of a material being scratched in known as: Hardness
