Question

Which of the following represents a type of change (physical or chemical) that is different from the rest? (5 points)

a
Rusting of metal after being exposed to water

b
Hydrogen and oxygen combine to make steam

c
Water vapor condenses to form water droplets

d
Release of gas when a particular candy is dropped in water

Answer 1

Answer:

physical means physically done eg cut.....the object is reversible

chemical means changing the matter into new substance....it cannot be reversible

Explanation:

Answer 2

Rusting of metal after being exposed to water