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3 years ago

8

What is the chemical formula for the compound formed between chromium(vi) and fluorine?

1 answer:

diamong [38]3 years ago

8 0

The formula of chromium fluoride is CFr2.

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What is a characteristic of every combination reaction?

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3 years ago

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3 years ago

Read 2 more answers

5K + KNO3 ------ 3K2O + N

masya89 [10]

Answer:

174,957.143 grams of potassium and 89,228.478 grams of potassium nitrate will be needed.

Explanation:

$5K +KNO_3\rightarrow 3K_2O + N$

Mass of nitrogen = 27 lbs = 12,247 g

1 lbs = 453.592 g

Moles of nitrogen = $\frac{12,247 g}{14 g/mol}=874.786 mol$

According to reaction, 1 mole of nitrogen is produced from 5 moles of potassium and 1 mole of potassium nitrate.

Then 874.786 mol of nitrogen will be obtained from :

$\frac{5}{1}\times 874.786 mol=4,373.928 mol$ of potassium.

Then 874.786 mol of nitrogen will be obtained from :

$\frac{1}{1}\times 874.786 mol=874.789 mol$ of potassium nitrate.

Mass of 4,373.928 moles of potassium:

$4,373.928 mol\times 40 g/mol=174,957.143 g$ of potassium

Mass of 874.789 moles of potassium nitrate:

$874.789 mol\times 102 g/mol=89,228.478 g$ of potassium nitrate

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3 years ago

A sample of seawater weighs 158 g and has a volume of 156 mL. What is the density, in g/

nirvana33 [79]

1.01 g/ml

<em>Hope this helps</em><em> </em><em>:</em><em>)</em>

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4 years ago