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Neporo4naja [7]
3 years ago
6

PLEASE Help I will give u brainliest for if u get right.

Chemistry
2 answers:
Ilya [14]3 years ago
6 0
Someone already said it but
H
solong [7]3 years ago
3 0

Answer:

H

Explanation:

Hydrogen is a nonmetal love:)

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Brilliant_brown [7]
Im sorry about my answer a while ago.

answer: it will not be half empty ever. because any gas take all the space of the tank. molecules are everywhere they take so much space.
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How many grams of octane (C8H18) must be burned to produce 300.0g of CO2?
nika2105 [10]

Answer:

m_{C_8H_{18}}=85.67gC_8H_{18}

Explanation:

Hello there!

In this case, according to the given combustion reaction of octane, it is possible for us to perform the stoichiometric method in order to calculate the mass of octane that is required to consume 300.0 g of oxygen by considering the 2:25 mole ratio, and the molar masses of 114.22 g/mol and 32.00 g/mol respectively:

m_{C_8H_{18}}=300.0gO_2*\frac{1molO_2}{32.00gO_2}*\frac{2molC_8H_{18}}{25molO_2}*\frac{114.22gC_8H_{18}}{1molC_8H_{18}}   \\\\m_{C_8H_{18}}=85.67gC_8H_{18}

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3 years ago
Chemistry, Lesson 2.6
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