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ivann1987 [24]
3 years ago
13

I really need some help and explaining with the Heat of Combustion Lab.

Chemistry
1 answer:
Nataly_w [17]3 years ago
6 0
<span>Combustion means the elements or compound can be burned, but burning which is a chemical process requires oxygen; combustion reaction typically takes place in the presence of air. The combustion of methane is as follows: CH4(g) + 2 O2(g) -> CO2(g)+ 2 H2O(g) + energy One mole of gaseous methane reacts with two oxygen molecules to form a carbon dioxide molecule, and two water molecules which is given off as water vapor. The reaction involves the release of heat.</span>
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Answer:

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3 years ago
What is the weighted average of a nail in the sample data given?
Natalka [10]

The weighted average of the nail in accordance with the given data is 11.176g.

<h3>How to calculate weighted average?</h3>

Weighted average is an arithmetic mean of values biased according to agreed weightings.

The weighted average of the nail in the image above can be calculated by multiplying the decimal abundance with the mass of the nail, then summed up as follows;

Weighted average = (decimal abundance × mass 1) + (decimal abundance × mass 2)

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Therefore, 11.176g is the weighted average of the nail

Learn more about weighted average at: brainly.com/question/28042295

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1 year ago
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3 years ago
How many moles of water are present in 55.1 g of H2O
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