Oxygen carbon and hydrogen
Answer:
29 L.
Explanation:
Hello!
In this case, considering that we are performing a conversion by which the time should be cancelled out to obtain liters, we first need to convert the seconds on bottom to hours and then the volume on top to liters, just a shown down below:

Which turns out 29 L with 2 significant figures.
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360 seconds?
i’m guessing that is the answer as the question is unreasonable
Answer:
1)magnesium nitrate +hydrogen
2)calcium chlorine+hydrogen
3)zinc sulfate +hydrogen
Explanation:
hope it helps