Answer:
im no expert i believe 42
hope it helps
Explanation:
The answer is B, this is a synthesis reaction. A good way to identify a synthesis reaction is when there are multiple reactants, but only one product.
Add up the molar mass of Mercury Oxide, and then divide the molar mass of Oxygen by the molar mass of the compound.
So...
mm of Hg + mm of O= 200.59g + 16g= 217g
16g/217g = .0737... x 100 = 7.37%
Answer:
<h2>D. Krypton (Kr)</h2>
<u>Explanation:</u>
because
Neon and Krypton, both are belongs to Inert or Noble gas Group
During diffusion substances move from the denser medium (meaning where there is more of the substance) to less dense medium (meaning where there is less of the substance).