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Bess [88]
4 years ago
14

17 Two substances in a mixture differ in density and particle size. These properties can be used to(1) separate the substances

Chemistry
2 answers:
belka [17]4 years ago
6 0
If they're different sizes and densities, you are able to separate the substances. 
GrogVix [38]4 years ago
4 0

Answer:The correct answer is option (1).

Explanation:

Density is defined as mass of substance present in the unit volume of the substance.

Density can be used to separate two substance from their mixture. Substance with lower density will place itself on the top of the substance with higher density, And in order to distinguish those two substance from each other one can easily observe the boundary among those substance.

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What pressure is exerted by 0.883 mol N, in a 4.68 L steel container at 197.9 °C?
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I really hope i helped you! :)

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3 years ago
The substance argon has the following properties: normal melting point: 83.9 K normal boiling point: 87.4 K triple point: 0.68 a
Vsevolod [243]

Answer:

The final state of the substance is a gas.

The sample is initially a liquid. One or more phase changes will occur.

Explanation:

Let's consider the phase diagram for Argon (not to scale).

<em>A sample of argon is initially at a pressure of 49.6 atm and a temperature of 101.4 K. The pressure on the sample is reduced to 0.680 atm at a constant temperature of 101.4 K. Which of the following are true? Choose all that apply </em>

<em>The final state of the substance is a gas.</em> TRUE. At 0.680 atm and 101.4 K, the substance is a gas.

<em>The gas initially present will solidify.</em> FALSE. Initially, Ar is present as a liquid.

<em>The final state of the substance is a solid.</em> FALSE.

<em>The sample is initially a liquid. One or more phase changes will occur.</em> TRUE. The sample is initially liquid and only one phase change will occur.

5 0
4 years ago
Name two elements that you would expect to have properties very much like those of calcium
Semmy [17]
Beryllium, magnesium, strontium, barium, or radium. Hope this helped :))
7 0
3 years ago
What is a formula for sodium nitrate
Inessa [10]

Answer:

NaNO3

Explanation:

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8 0
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Read the following reactions.
garik1379 [7]

Answer:

Only Reaction 1

Explanation:

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In reaction 2, there is a decrease in amount of gas particles (4 mol to 2 mol). Hence there is a decrease in the number of ways particles and their energies could be arranged. As a result entropy decreases

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3 years ago
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