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3 years ago

Which of the following pairs of a greenhouse gas and its cause is not accurate?

Chemistry

1 answer:

bagirrra123 [75]3 years ago

8 0

Answer: The answer would be 4. Carbon dioxide : deforestation

Explanation:

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Which of the following is not a property of water?

Oxana [17]

Answer:

A) hydrogen bonds cause a high surface tension = FALSE

Explanation:

The rest are correct

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3 years ago

What is the quantity of atoms in KMnO4 ?

tankabanditka [31]

Answer:

Potassium permanganate has a molar mass of 158.04 g/mol. This figure is obtained by adding the individual molar masses of four oxygen atoms, one manganese atom and one potassium atom

Explanation:

6 0

3 years ago

Read 2 more answers

How many protons and neutrons in the atom K-42

katovenus [111]

There are 20n nutrons in the atom k-42.

3 0

3 years ago

How many oxygen atoms are in the product of this balanced chemical equation

svlad2 [7]

Answer:

two oxygen atoms

There are two oxygen atoms in the reactants and two atoms of oxygen in the product.

Explanation:

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3 years ago

The heat of reaction for the combustion of propane is –2,045 kJ. This reaction is: C3H8(g) +502 (g) 3CO2 (g) + 4H2O (g). Determi

Ede4ka [16]

Answer:

$\Delta _fH_{C_3H_8}=-102.7kJ/mol$

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:

$\Delta _cH=3*\Delta _fH_{CO_2}+4*\Delta _fH_{H_2O}-\Delta _fH_{C_3H_8}-5*\Delta _fH_{O_2}$

Thus, since the heat of formation of gaseous carbon dioxide is -393.5 kJ/mol, water -241.8 kJ/mol and oxygen 0 kJ/mol, the heat of formation of propane is:

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

Best regards.

8 0

3 years ago