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2 years ago

14

Which mineral might scratch the mineral fluorite, but would not scratch the mineral amphibole? 1 brucite 2. magnesite 3. carnall

ite 4. olivine

1 answer:

NARA [144]2 years ago

4 0

Answer:

olivine i think

Explanation:

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Joan needs a 0.053-M solution of HCl, but only has access to 2.12-M HCl, a 10-mL graduated pipet, and a 25-mL volumetric flask.

dmitriy555 [2]

Answer:

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

Explanation:

Molarity of HCl Joan has access to = $M_1=2.12 M$

Volume of 2.12 M of HCl Joan use = $V_1=?$

Molarity of HCl Joan desired = $M_2=0.053 M$

Volume of 0.053 M of HCl Joan can prepare = $V_2=25 mL$

$M_1V_1=M_2V_2$

$V_1=\frac{M_2V_2}{M_1}$

$=\frac{0.053 M\times 25 mL}{2.12 M}=0.625 mL$

Joan should measure 0.625 mL of 2,12 M HCl solution to create her desired solution.

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Answer:

the answer is produces protein which humans can eat?

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Can calcium conduct electricity

postnew [5]

Yes because it is a perfect conductor and all metals conduct heat.

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3 years ago

3) Which elements occur diatomically?

never [62]

Answer: Diatomic elements are pure elements that form molecules consisting of two atoms bonded together.

There are seven diatomic elements: hydrogen, nitrogen, oxygen, fluorine, chlorine, iodine, bromine.

Explanation:

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3 years ago

How much more acidic is an acid with a pH of 6 than water with a pH of 7?

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Answer:

1 pH more acidic

Explanation:

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7 is neutral.

So from 7 pH, it becomes 1 pH acidic, making it 6 pH.

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