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aev [14]
2 years ago
6

If you are given two samples of water one of which is pure and another which is impure, give one simple experiment that you woul

d carry out in the laboratory to distinguish them. What results would you expect?
Chemistry
1 answer:
sveta [45]2 years ago
4 0

Answer:

Boiling both samples of water

Explanation:

while Boiling both samples of water construct a heating curve for each this helps you I dentify the purity of the samples the heating curve of the pure water has sharp Boiling point while the impure does not have

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Two different atoms have four protons each and the same mass. However, one has a positive charge while the other is neutral. Des
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The possible number and location of all subatomic are one of them is electrically neutral, while the other has a stable electronic configuration.

<h3>What are subatomic particles?</h3>

Subatomic particles are those particles that are present inside the atoms. They are electron, neutron, and proton. They are charged particles, protons are positively charged, electrons are negatively charged and neutrons are neutral.

The protons and electrons totally contribute to the atomic mass of the elements.

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1 year ago
Calculate each of the following quantities.<br> (a) mass in kilograms of 3.7 x 1020 molecules of NO2
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Answer:

The answer to your question is:  0.028 kg of NO2

Explanation:

Data

3.7 x 10²⁰ molecules of NO2 in kg

MW of NO2 = 14 + (16 x 2) = 14 + 32 = 46 kg

                   1 mol of NO2 ---------------------  6.023 x 10 ²³ molecules

                   x                     --------------------- 3.7 x 10²⁰ molecules

                   x = 3.7 x 10²⁰ x 1 / 6.023 x 10 ²³

                   x = 0.00061 mol

         

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                 0.00061 mol     ------------------    x

                 x = 0.00061 x 46/1

                x = 0.028 kg of NO2

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0.60759572 gal  is the volume of acid in gallons  in a sample of hydraulic acid .

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The gallon is a unit of measurement for volume and fluid capacity in both the US  units and the British imperial systems of measurement.

In SI base units, 1 Gal is equal to 0.01 m/s²

Since ,

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