3 years ago

PLS HELP ASAP! just need to balance the equation but i have no idea how pls help meee

Chemistry

1 answer:

Vladimir [108]3 years ago

8 0

Answer: --- N^2 + --- F^2 => --- NF^3

Question 28: Answer: 1 N^2 + 3F^2 => 2NF^3

Answer: 3F^2 , 2NF^3

Explanation:

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3 years ago

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Answer:

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Explanation:

Hello,

In this case, we can consider that the given heat of combustion is indeed the heat of reaction since it corresponds to the combustion of propane, which is computed by using the heat formation of all the involved species as shown below:

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$\Delta _fH_{C_3H_8}=3*\Delta _fH_{CO_2}+4*\Delta _fH_{H_2O}-5*\Delta _fH_{O_2}-\Delta _cH\\\\\Delta _fH_{C_3H_8}=3*(-393.5)+4*(-241.8)-5*0-(-2045)\\\\\Delta _fH_{C_3H_8}=-102.7kJ/mol$

Best regards.

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3 years ago

Can you identify a chemical only by knowing its physical properties?

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Any characteristic that can be determined without changing the substance's chemical identity. chemical property: Any characteristic that can be determined only by changing a substance's molecular structure

Explanation:

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