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andreyandreev [35.5K]

3 years ago

8

My labmate discovered a new compound and wanted to try to determine what it could be. We noticed that when mixed with an acid, i

t formed a white solid. What type of chemical reaction did the new chemical just undergo?

1 answer:

kvv77 [185]3 years ago

4 0

Answer:

it went under the process known as crystalization

Explanation:

am a chemist

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Lera25 [3.4K]

Answer:

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5 0

3 years ago

What is the molecular geometry of PBr5? Draw its VSEPR and Lewis structure.

Vikentia [17]

The molecular geometry is trigonal bipyramidal.

3 0

4 years ago

What is the empirical formula for a substance that contains 3.730% hydrogen, 44.44% carbon, and 51.83% nitrogen by mass?\?

Vlada [557]

Given data:

Hydrogen (H) = 3.730 % by mass

Carbon (C) = 44.44%

Nitrogen (N) = 51.83 %

This means that if the sample weighs 100 g then:

Mass of H = 3.730 g

Mass of C = 44.44 g

Mass of N = 51.83 g

Now, calculate the # moles of each element:

# moles of H = 3.730 g/ 1 g.mole-1 = 3.730 moles

# moles of C = 44.44/12 = 3.703 moles

# moles of N = 51.83/14 = 3.702 moles

Divide by the lowest # moles:

H = 3.730/3.702 = 1

C = 3.703/3.702 = 1

N = 3.702/3.702 = 1

Empirical Formula = HCN

3 0

3 years ago

If the density of mercury is 13.6g/ml, what is the mass in grams of 3426 ml of the liquid?

valkas [14]

Answer:

Explanation:

Mass=density×volume

Mass=13.6g/ml×3426ml

Mass=46,593.6 g

5 0

3 years ago

A reaction that produces great heat for welding and incendiary bombs

Anna11 [10]

Answer:

7.19 g of Fe2O3 will produce 0.092 mole of iron

Explanation:

One mole of Fe2O3 reacts with 2 mole of Aluminum to produce one mole of Al2O3 and 2 mole of iron.

Mass of one mole of Fe2O3 = 159.69 g/mol

Thus, 159.69 g/mol of Fe2O3 produces two mole of Fe

7.19 g of Fe2O3 will produce

$\frac{2}{156.9} * 7.19\\= 0.092$ moles of iron

6 0

3 years ago