Answer:
(not sure) The origin of all cells observed can be traced to previous cells
Explanation:
- not all cells convert energy (?) (this I'm not sure but think so? might be wrong tho)
- not all cells have cell walls e.g. animal cells only have the cell membrane, no cell wall
- Rocks and other nonliving things are composed of cells: non living things are composed of the elements and not cells (unless they were previously alive, then they contain dead cells)
Answer:
I'm pretty sure this doesn't really connect with chemistry much but the answer should be <u>Schedule 1 </u> as stated by the Drug enforcement agency.
The answer is 451.4124 argon
<u>Answer:</u> The amount of acetylene gas needed in the reaction is 2.00 moles
<u>Explanation:</u>
We are given:
Moles of water = 2.00 moles
The chemical equation for the reaction of acetylene with oxygen gas follows:

By Stoichiometry of the reaction:
2 moles of water is produced by 2 moles of acetylene gas
So, 2.00 moles of water will be produced by =
of acetylene gas
Hence, the amount of acetylene gas needed in the reaction is 2.00 moles