3 years ago

I need help with it please

Chemistry

2 answers:

Sati [7]3 years ago

8 0

Answer:

1. cells

2. energy

3. pre-existing cells by division

Explanation:

Goryan [66]3 years ago

3 0

Answer:

1. All living things have 1 or more cell

2. All organisms use a source of energy

3. All cells come form other pre-exsisting cells

Explanation:

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A chemical reaction occurring in a cylinder equipped with a moveable piston produces 0.641 mol of a gaseous product. If the cyli

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<u>Explanation:</u>

The relationship of number of moles and volume at constant temperature and pressure was given by Avogadro's law. This law states that volume is directly proportional to number of moles at constant temperature and pressure.

The equation used to calculate number of moles is given by:

$\frac{V_1}{n_1}=\frac{V_2}{n_2}$

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$V_1\text{ and }n_1$ are the initial volume and number of moles

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$V_1=2.05L\\n_1=0.280mol\\V_2=?L\\n_2=0.641mol$

Putting values in above equation, we get:

$\frac{2.05}{0.280}=\frac{V_2}{0.641}\\\\V_2=\frac{2.05\times 0.641}{0.280}=4.69L$

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