3 years ago

When calcium chloride and baking side is mixed, is it an example of chemical or physical change?

1 answer:

4 0

It’s a chemical change

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elena-14-01-66 [18.8K]

Explanation:

It is given that lattice energy is -701 kJ/mol.

Whereas it is known that realtion between lattice energy and radius is as follows.

Lattice energy $\propto \frac{Z_{+}Z_{-}}{r}$

where, $Z_{+}$ = +2, and $Z_{-}$ = -2

Therefore, lattice energy of AB = $4 \times \text{lattice energy of KCl}$

= $4 \times -701 kJ/mol$

= -2804 kJ/mol

Thus, we can conclude that lattice energy of the salt ABAB is -2804 kJ/mol.

6 0

2 years ago

ruslelena [56]

He symbol "=" is used to
<span>starting substance </span>

6 0

3 years ago

Lena [83]

The answer would be E, it shows students how the different environments appear, since you can visually see it.

3 0

3 years ago

JulijaS [17]

Answer:

2. A

3.B

4.B

Hope this helps,Pls mark as Brainliest!!

4 0

3 years ago

djverab [1.8K]

The answer is letter A definitively .

6 0

2 years ago