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Serhud [2]
3 years ago
6

Melting can be best described as a process in which molecules?

Chemistry
2 answers:
ludmilkaskok [199]3 years ago
8 0

Answer:

D.gain enough kinetic energy to get past each other.

Explanation:

Melting can be best described as a process in which molecules gain enough kenetic energy to put past each other.

Nostrana [21]3 years ago
4 0

Answer:

D

Explanation:

Edge 2020

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A 11.97g sample of NaBr contains 22.34 % Na by mass. Considering the law of constant composition (definite proportions), how man
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<h3>Answer:</h3>

2.125 g

<h3>Explanation:</h3>

We have;

  • Mass of NaBr sample is 11.97 g
  • % composition by mass of Na in the sample is 22.34%

We are required to determine the mass of 9.51 g of a NaBr sample.

  • Based on the law of of constant composition, a given sample of a compound will always contain the sample percentage composition of a given element.

In this case,

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A sample of 9.51 g of NaBr will also contain 22.345 of Na by mass

  • But;

% composition of an element by mass = (Mass of element ÷ mass of the compound) × 100

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Mass of the element = (% composition of an element × mass of the compound) ÷ 100

Therefore;

Mass of sodium = (22.34% × 9.51 g) ÷ 100

                         = 2.125 g

Thus, the mass of sodium in 9.51 g of NaBr is 2.125 g

3 0
2 years ago
A. What is the pH of a solution with a [H+] of 6.8 x 10^-11?
inysia [295]

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The type of radiation which is identical to a high energy electron is known as a(n). beta, alpha, or gamma particles
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The type of radiation which is identical to a high energy electron is known as a(n) beta.

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