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8_murik_8 [283]
3 years ago
13

Select the correct answer.

Chemistry
2 answers:
nikklg [1K]3 years ago
8 0
the answer is A- the spacing between particles decreases. Because as you put heat on a solid such a ice the density of tht solid decreases and turn into a liquid (water)

when density of a solid decreases, the spacing between the particles decreases

In a way just think that the particles loosen up to the point where it no longer holds together as a solid.
Reptile [31]3 years ago
6 0
C.

Particles will also move faster.
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In the reaction, A -----> Products, the rate constant is 3.6 x 10^−4 s−1. If the initial concentration of A is 0.548 M, what
swat32

Answer:

0.529

Explanation:

Let's consider the reaction A → Products

Since the units of the rate constant are s⁻1, this is a first-order reaction with respect to A.

We can find the concentration of A at a certain time t ([A]_{t}) using the following expression.

[A]_{t}=[A]_{0}.e^{-k\times t}

where,

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[A]_{t}=0.548M.e^{-3.6\times 10^{-4}s^{-1}\times 99.2s }

[A]_{t}=0.529 M

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Answer:

The number of atoms in the outermost shell  

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