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Yuliya22 [10]
3 years ago
15

A substance floats in water. The density of water is 1 g/mL. Which of the following is most likely the density

Chemistry
1 answer:
faltersainse [42]3 years ago
6 0

Answer:

The density of water is 1g/mL

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PLS HELP: CHEMISTRY
user100 [1]

Answer:

3.59x10^21 molecules

Explanation:

1mole of a substance contains 6.02x10^23 molecules.

Therefore, 1mole of C8H18 will also contain 6.02x10^23 molecules

1mole of C8H18 = (12x8) +(18x1) = 96 + 18 = 114g.

1mole (i.e 114g) oh C8H18 contains 6.02x10^23 molecules.

Therefore, 0.68g of C8H18 will contain = (0.68 x 6.02x10^23)/114 = 3.59x10^21 molecules

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nadezda [96]

Answer:

Flashlight

Explanation:

A flashlight gives out heat

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