Question

13
Changes in which only .properties of a substance change are called physical changes
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Answer 1

Explanation:

Changes in which only physical properties of a substance change are called physical changes. (e) Changes in which new substances are formed are called chemical changes. Question 4: When baking soda is mixed with lemon juice, bubbles are formed with the evolution of a gas.

Answer 2

Answer:

Expl

Thus, chemical changes involve the formation of new substances. Physical change is a temporary change. A chemical change is a permanent change. A Physical change affects only physical properties i.e. shape, size, etc.