Question

B. Fill in the blanks.

1. Most chemical changes........... arewhereas
most physical changes are...........

2. Mixing of iron and sulphur is a..............change, whereas heating of iron and sulphur is
a..........change.

3.........is formed when magnesium oxide
is dissolved in water.

4. Rusting of iron is a..........change, whereas
..............boiling of milk is a
change.
5. Carbon dioxide gas turns limewater.............. A................
change takes place.​

Answer 1

Answer:

Magnesium oxide reacts with ionised water to produce magnesium hydroxide. aqueous magnesium chloride is when magnesium oxide dissolves in hydrochloric acid

Answer 2

Answer:

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Explanation:

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