Question

1. A change that can be reversed by reversing the conditions
2. A change in which only the physical properties of any substance get chang
3. The process in which a metal is displaced by a more reactive metal.​

Answer 1

Answer:

1.A change that can be reversed by reversing the conditions is known as a reversible change.

2.A physical change involves a change in physical properties. Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.

3.Displacement reactions occur when a metal from the electrochemical series is mixed with the ions of a metal lower down in the electrochemical series. The atoms of the more reactive metal push their electrons on to ions of the less reactive metal. An example can be seen below.

Explanation:

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