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V125BC [204]
3 years ago
8

Is quartz(SiO2) a substance or mixture?

Chemistry
1 answer:
Illusion [34]3 years ago
8 0
Quartz is a substance because the material has uniform properties throughout and is held together via chemical bonds.
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Which characteristic is used to identify minerals?
snow_tiger [21]
The ways to identify a mineral are LUSTER, density, hardness, and cleavage. 
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3 years ago
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Consider the chemical equilibrium of the reaction. NH4OH(aq) mc014-1.jpg NH4+(aq) + OHmc014-2.jpg(aq) What will happen to the ch
Bingel [31]
The chemical equilibrium will shift to the left.
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2 years ago
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11. A 4.175 gram sample of a certain hydrate of copper (II) sulfate, CuSO,• xH,O, is heated until all
Wewaii [24]

The  formula of the hydrate = CuSO₄• 3H₂O

<h3>Further explanation</h3>

Given

4.175 grams sample CuSO₄• xH₂O

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Required

The formula

Solution

mass of H₂O driven off :

= 4.175 - 3.12

= 1.055 g

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mol ratio of CuSO₄ : H₂O :

= 3.12/159.5 : 1.055/18

= 0.01956 : 0.05861

= 1 : 3

3 0
3 years ago
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kenny6666 [7]

Answer: orientation , energy , frequency

Explanation:

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1. Orientation factor: The colliding molecules must have proper orientation at the time of collision to result into formation of products.

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3 years ago
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