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3 years ago

Inorganic chemicals: Select one:

Chemistry

1 answer:

natka813 [3]3 years ago

5 0

Answer:

Explanation:

Inorganic chemicals are present both in ground and surface water. Inorganic chemicals are found in soil from which they may contaminate runoff and eventual find their way into surface water bodies. Also, inorganic ions may be leached into underground aquifers and contaminate or underground water .

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What is the molality of a solution that contains 75.2 grams of agclo4 in 885 grams of benzene? 8.20 m 0.83 m 0.41 m 4.10 m?

Katena32 [7]

0.41 m I got a 100 on this quiz.

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3 years ago

The densities of several gases at the same temperature are listed below. Considering only density, waves should travel fastest i

melomori [17]

The answer is helium 0.09 kg/m³.

The wave will move faster in the gas that is having lowest density.

As comparison to other gases-hydrogen, oxygen and radon; helium has the lowest density that is 0.09 kg/m³.

So, waves will move fastest in helium gas as it is having lowest density.

So the answer is helium gas that is waves will move fastest in helium gas.

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3 years ago

Read 2 more answers

How can you find out what substances

nlexa [21]

Answer: Melting or boiling

Explanation:

Melting or boiling point is another property that scientists can use to identify a substance. Melting point is the temperature at which a substance changes from solid → liquid. Boiling point is the temperature at which a substance changes from liquid → gas.

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2 years ago

Balance the following reaction. C₂H6+ Cl2 C2H4Cl2 + HCI

julsineya [31]

Answer:

C2H6 + 2 Cl2 = C2H4Cl2 + 2 HCl

Explanation:

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3 years ago

What is the mass in grams of 0.280 mole sample of sodium hydroxide NaOH

vivado [14]

Answer:

The mass of 0.280 mole sample of sodium hydroxide NaOH is 11.2 grams.

Explanation:

To know the mass in grams of 0.280 moles of sample of sodium hydroxide NaOH, you must know the molar mass of the compound, that is, the mass of one mole of a substance, which can be an element or a compound.

So you know:

Na: 23 g/mole
O: 16 g/mole
H: 1 g/mole

So, the molar mass of NaOH is:

NaOH= 23 g/mole + 16 g/mole+ 1 g/mole= 40 g/mole

Then the following rule of three can be applied: if in 1 mole of sodium hydroxide there are 40 grams, in 0.280 moles how much mass is there?

$mass=\frac{0.28 moles*40 grams}{1 mole}$

mass= 11.2 grams

The mass of 0.280 mole sample of sodium hydroxide NaOH is 11.2 grams.

4 0

3 years ago