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3 years ago

Can you Guys please help me on 14,and 15

Chemistry

2 answers:

jok3333 [9.3K]3 years ago

7 0

14. is a and i think 15. is b

lys-0071 [83]3 years ago

7 0

I am nowhere sure, but I think it is: 14;D, 15;C, Chemistry is not my best subject.

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WARRIOR [948]

Answer:

B. Gradualism

Explanation:

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3 years ago

You can practice converting between the mass of a solution and mass of solute when the mass percent concentration of a solution

LUCKY_DIMON [66]

Answer: The mass of solution having 768 mg of KCN is 426.66 grams.

Explanation:

We are given:

0.180 mass % of KCN solution.

0.180 %(m/m) KCN solution means that 0.180 grams of KCN is present in 100 gram of solution.

To calculate the mass of solution having 768 mg of KCN or 0.786 g of KCN (Conversion factor: 1 g = 1000 mg)

Using unitary method:

If 0.180 grams of KCN is present in 100 g of solution.

So, 0.768 grams of KCN will be present in = $\frac{100g}{0.180g}\times 0.768=426.66g$ of solution.

Hence, the mass of solution having 768 mg of KCN is 426.66 grams.

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4 years ago

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Ket [755]

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3 years ago

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kherson [118]

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3 years ago

What happens when the kinetic energy of particles in a liquid state increases?

Hitman42 [59]

Answer:

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HOPE THIS ANSWER IS HELPFUL!!

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3 years ago