2 years ago

What is the definition of Axis of rotation

Chemistry

1 answer:

il63 [147K]2 years ago

6 0

Answer: an invisible line around which an object rotates, or spins.

Explanation: //Give thanks(and or Brainliest) if helpful (≧▽≦)//

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What is the number of electrons and protons can be seen in this atom?

pochemuha

Explanation:

the number of electrons = 8

and protons = 8 can be seen in this atom

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3 years ago

A small diamond, which is made of pure carbon, contains too many carbon atoms to count individually. Which is closest to the num

8090 [49]

The correct answer is option C, 5.02 x 10²² carbon atoms

Atomic mass of C = 12 g/mol

According to Avogadro, 1 mole of C has 6.023 x 10²³C atoms

Now 1 mole of C is equal to 12 g

Therefore, 12 g of C = 6.023 x 10²³ C atoms

1 g of C = $\frac{6.023 x 10^2^3}{12}$ C atoms = 5.02 x 10²² C atoms

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2 years ago

What is the molarity of a solution that contains 125 g nacl in 4.00 l solution?

bogdanovich [222]

Answer:

[NaCl[ = 0.535M

Explanation:

We determine the moles of solute:

125 g . 1 mol/ 58.45 g = 2.14 moles

Molarity (mol/L) → 2.14 mol / 4L → 0.535M

Molarity is a sort of concentration that indicates the moles of solute in 1L of solution

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3 years ago

Why is it necessary to obtain 25 to 50 hairs from this woman?

Vedmedyk [2.9K]

To get the correct data

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2 years ago

How many liters are equivalent to 43 milliliters?

marysya [2.9K]

Answer:

The answer is B) 0.043 L

Explanation:

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3 years ago

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