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Mrac [35]
3 years ago
10

According to Moh's hardness scale, your fingernail would be rated as 2.5. Juan and Carol are trying to identify an unknown miner

al. Carol can scratch the mineral sample with her fingernail. Juan and Carol know the mineral MUST be one of these four choices.
Based on the scratch test, the mineral is
A) apatite.
B) calcite.
C) gypsum.
D) pyrite. '
heres a pic if u need it
Mohs Scale of Mineral Hardness
Hardness Mineral Absolute Hardness
1 Talc 1
2 Gypsum 2
3 Calcite 9
4 Fluorite 21
5 Apatite 48
7 Quartz 100
8 Topaz 200
help plz! i couldnt get the table things but that was part of it though!
Chemistry
2 answers:
Tresset [83]3 years ago
7 0
C) 
Should Be The Right Answer
Hopes This Helps Yeah
mamaluj [8]3 years ago
3 0
I believe C is the answer because it is softer than your fingernail and the rest are harder.
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8 0
2 years ago
Biphenyl and benzene are common side products in this gringard reaction. explain at which points in the purification procedure t
mafiozo [28]

In Grignard reaction, Biphenyl and benzene are common side products which are removed during trituration.

In organic chemistry, a reaction in which the Grignard reagents or organometallic substances are added to organic compounds such as aldehydes and ketones to form alcohol is known as Grignard reaction.

These Grignard reagents are magnesium halides of alkyl, vinyl or allyl, which react with a carbonyl group to form alcohols.

During this reaction, primary, secondary and tertiary alcohols are formed.

While Biphenyl and benzene are common side products.

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If you need to learn more about Biphenyl and benzene click here:

brainly.com/question/4336669

4 0
1 year ago
How does maximum boiling azeotropic mixture is separated using fractional distillation?
Evgesh-ka [11]

Answer:

By heating the mixture to maximum boiling point and then the solution is distilled at a constant temperature without having a change in composition.

Explanation:

An azeotropic mixture is also called a constant boiling mixture and it is a mixture of two or more liquids whose proportions cannot be altered by simple distillation due to the fact that when an azeotropic mixture is boiled, the vapor has the same proportions of constituents as the unboiled mixture.

Now, maximum boiling azeotropic mixture are the solutions with negative deviations that have an intermediate composition  for which the vapor pressure of the solution is minimum and as a result, the boiling point is maximum. At that point, the solution will distill at a constant temperature without having a change in composition.

4 0
2 years ago
Quiz due soon need help ASAP
Rom4ik [11]

Answer:

3

Explanation:

Because in product 3CuSO4 is present it means 3 SO4 sulphate ions are present

8 0
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Well its an easy one but it hard for me so plz​
lana66690 [7]

Answer:

need more so we can answer

Explanation:

7 0
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