Question

(a)
nowing statements:
When carbon dioxide is passed through lime water, it turns milky
due to the formation of
(b) The chemical name of baking soda is
(c) Two methods by which rusting of iron can be prevented are
and
(d) Changes in which only
properties of a substance change
are called physical changes.
(e) Changes in which new substances are formed are called
changes.​

Answer 1

Answer:

• When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas. ... When baking soda is mixed with lemon juice, the bubbles which are formed with the evolution of a gas are due to evolution of CO2 gas. Since there is formation of a new substance in this reaction, it is a chemical change.

Explanation:

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Answer 2

Answer:

(a) When carbon dioxide is passed through lime water, it turns milky due to the formation of Calcium carbonate (CaCO3). (b) The chemical name of baking soda is Sodium bicarbonate (NaHCO3).

Explanation:

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