Answer: Well "ordinary ice" is made from water (as we all know) and dried ice is made from carbon dioxide gas
Explanation:
•Hope this helps•
2:7 ratio of ethane to O2 = 15:x 9solve for x)
x=52.5 mol O2
Fossil C is the youngest. Layers further down were placed earlier than others. Because C is on the top layer, it must be the youngest (unless a disaster mixed up all the layers!).
Answer: 5moles
Explanation:
1mole of a substance contains 6.02x10^23 molecules.
Then, 1mole of CO also contains 6.02x10^23 molecules.
If 1 mole of CO2 contains 6.02x10^23 molecules, it means Xmol of CO contains 3.01 E24 ie 3.01x10^24 molecules
Xmol of CO = 3.01x10^24 / 6.02x10^23
Xmol = 5moles
The choices can be found elsewhere and as follows:
<span>(1) substitution
(2) esterification
(3) addition
(4) fermentation
</span>
I believe the correct answer is option 3. The reaction CH2CH2 + H2 → CH3CH3 is an example of an addition reaction. It is a<span> </span>reaction<span> where two or more molecules combine to form a larger one. Hope this answers the question.</span>
