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konstantin123 [22]
3 years ago
12

Which of the following is not an example of a chemical change?

Chemistry
2 answers:
liubo4ka [24]3 years ago
7 0

Answer:

Dissolving salt

Explanation:

APEX :)

ale4655 [162]3 years ago
4 0
Salt dissolving in a glass of water, using electricity to break down water into hydrogen and oxygen, rust forming on an iron fence and gas burning on a stove.  
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Mg(OH)2+2 HCI = MgCI2+ H2O
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Answer:

Mg(OH)2 + 2HCI ⇒ MgCI2 + 2H2O

Explanation:

In order to balance a chemical equation you need to make sure both sides of the equations are equal.

Mg(OH)2 + 2HCI = MgCI2 + H2O

Mg = 1

Oh = 2

HCI = 2

Products:

Mg = 1

CI = 2

H = 2

O = 1

2H20 = 1 × 2 = 2

2 × 2 = 4

2HCI

1 × 2 = 2

Mg(OH)2 + 2HCI ⇒ MgCI2 + 2H2O

Hope this helps.

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