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e-lub [12.9K]
2 years ago
15

Which of these is not a commonly mined metallic substance?

Chemistry
1 answer:
Sliva [168]2 years ago
5 0

Answer:

C) quartz

Explanation:

Quartz is a common mineral. Also, quartz isn't a metallic substance. I'm hoping that this helps :)

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Give examples which indicate that nylon fibres are very strong.​
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Explanation:

is used for making ropes, used for climbing rocks and for making parachutes. Their usage shows that nylon fibres have high tensile strength

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2 years ago
If you had excess chlorine, how many moles of of aluminum chloride could be produced from 19.0 g of aluminum?
SIZIF [17.4K]
The chemical reaction would be written as follows:

2Al + 3Cl2 = 2AlCl3

We are given the amount of aluminum to be used in the reaction. This will be the starting point of the calculations. We do as follows:

19.0 g Al ( 1 mol / 29.98 g ) ( 2 mol AlCl3 / 2 mol Al ) = 0.63 mol AlCl3
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Calculate the numbers of mL in 0.603 L
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Answer:

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Explanation:

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3 years ago
When a person looks at a bright light, tiny muscles in the eye contract so less light can enter the eye.
bagirrra123 [75]

Answer:

involuntary, attached to the eyeball, nonstriated.

Explanation:

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2 years ago
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How many atoms of hydrogen-1 are in a 1.007-g sample?
Greeley [361]
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