Heat can be absorbed or produced
Answer:
Europa
Explanation:
it is though that to have a subsurface liquid of water
J.J. Thomson discovered the electron 1897
Answer:
Oxygen is the limiting reactant.
Explanation:
Hello,
In this case, given the reaction:

Hence, given the masses of both ethanol and oxygen, we are able to compute the available moles ethanol by:

Next, we compute the moles of ethanol that react with the 0.640 grams of oxygen considering their 1:3 molar ratio in the chemical reaction:

In such a way, since there are 0.01 available moles of ethanol but just 0.0067 moles are reacting, we evidence ethanol is in excess, therefore the oxygen is the limiting reactant.
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