Answer:
A
Explanation:
0.2g of atom of nitrogen is the one that weigh least cause of.2g is not up to one mole of nitrogen
If you’re given molecular weight, you know that density is mass/volume. You need to convert the molecular weight to volume. If you know what molecule it is, use the gram formula mass to convert it into grams.
I dont know the answer but i have some explanation for that question.
Since krypton is in the far right row of the periodic table, its outermost shell is full with eight electrons. This is one of the happy elements and has an electron configuration of 2-8-18-8.
A requires oxygen
The reason is that fermentation does not always need oxygen.
Answer:
it sank to the bottom and started dissolving and creating a gas (gas production is a sign that a chemical change is happening)!
Explanation:
As the gas bubbles rose, they carried some of the colored water with them. When the blob of water reached the top, the gas escaped and down went the water.
