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mr Goodwill [35]
3 years ago
13

Which is a true statement?

Chemistry
2 answers:
labwork [276]3 years ago
7 0

Answer: B) Particles can be filtered from a suspension.

Explanation: Colloids are solutions with particle size intermediate between true solutions and suspensions. They exhibit tyndall effect that is scattering of light.

Suspensions have large sized particles which settle when left undisturbed for sometime and thus can be filtered off easily.

The particle size in colloids is less and hence they do not settle under the effect of gravity.

A solution can be homogeneous in which the composition is uniform or heterogeneous in which is the composition is not uniform.


aliina [53]3 years ago
3 0

Answer:

Particles can be filtered from a suspension.

Explanation:

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What is the maximum number of moles of Al2O3 that can be produced by the reaction of .4 mol of Al with .4 mol of O2
Darya [45]

<u>Given:</u>

Moles of Al = 0.4

Moles of O2 = 0.4

<u>To determine:</u>

Moles of Al2O3 produced

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Based on the reaction stoichiometry:

4 moles of Al produces 2 moles of Al2O3

Therefore, 0.4 moles of Al will produce:

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Similarly;

3 moles O2 produces 2 moles Al2O3

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4 0
3 years ago
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GrogVix [38]
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Given a fixed amount of gas held at constant pressure, calculate the volume (in L) it would occupy if a 3.50 L sample were coole
Over [174]

Answer:

V₂ = 2.91 L

Explanation:

Given data:

Initial volume = 3.50 L

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Final volume = ?

Solution:

V₁ = Initial volume

T₁  =  Initial temperature

V₂ = Final volume

T₂ = Final temperature

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3 years ago
1. A 50 gram sample of a radioisotope decays to 12.5 grams in 14.4 seconds. What is
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Answer:

Half life = 7.2 seconds

Explanation:

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2 years ago
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