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3 years ago

Guys please answer this

Chemistry

1 answer:

iren [92.7K]3 years ago

6 0

Answer:

Mass = 96 g

Explanation:

Given data:

Number of moles of C = 8 mol

Mass of C in gram = ?

Solution:

Formula:

Number of moles = mass/molar mass

Molar mass of C = 12 g/mol

8 mol = mass / 12 g/mol

Mass = 8 mol × 12 g/mol

Mass = 96 g

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Answer:

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sukhopar [10]

Answer:

-255.4 kJ

Explanation:

The free energy of a reversible reaction can be calculated by:

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3 years ago

What is another name for energy lost through heat and sound?

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3 years ago

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Ierofanga [76]

Physical changes- any change in the physical properties of the substance is a physical change. Generally physical properties include color, state, size , shape, odour, appearance . In any phyical change, no new substance is formed.

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In this also, only the state of CO2 changes from solid to gas and no new product is formed. Thus, it is a physical change.

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3 years ago