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3 years ago

14

The greatest problem facing the use of nuclear power plants is _____.

2 answers:

FinnZ [79.3K]3 years ago

7 0

Answer:

disposal of radioactive waste

Explanation:

if too much is released, it can wipe out large parts of the country

Galina-37 [17]3 years ago

6 0

Answer: disposal of radioactive waste

Explanation:

The nuclear wastes are those wastes which are generated in the nuclear power plants during nuclear reactions. These wastes are radioactive and they have the potential to cause deadly mutations in living beings and if they come in contact with the external environment from reactor they can cause explosions. Hence, their disposal is a greatest problem.

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2 years ago

If 5g of H2 are reacted with excess CO, how many grams of CH3OH are produced, based on a yield of 86%?

Cerrena [4.2K]

Answer: 34.4 g

Explanation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

$\text{Number of moles of hydrogen}=\frac{5g}{2g/mol}=2.5moles$

As $CO$ is in excess, $H_2$ is the limiting reagent and thus it will limit the formation of products.

$CO+2H_2\rightarrow CH_3OH$

According to stoichiometry:

2 moles of hydrogen produce = 1 mole of $CH_3OH$

2.5 moles of hydrogen produce = $\frac{1}{2}\times 2.5=1.25 moles$ of $CH_3OH$

Mass of $CH_3OH=moles\times {\text {Molar mass}}=1.25\times 32=40g$

But as % yield is 86%, mass of $CH_3OH$ produded is $\frac{86}{100}\times 40=34.4g$

Thus 34.4 g of $CH_3OH$ is produced.

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3 years ago

Which of these facts best illustrates why regulation of alcohol consumption is necessary

exis [7]

So that people don’t break laws or drive under the influence.

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