2. Classify the following into physical or chemical changes.
a). Burning of charcoal ____________________________________
b). Melting of candle wax ___________________________________
d). Adding an acid to an alkali __________________________
e). Burning magnesium in air __________________________
Answers
Answered by
0
Answer:
a . physical
b. physical
c. chemical
d. chemical
Answered by
1
Answer:
(a) Photosynthesis → Chemical change
(b) Dissolving sugar in water → Physical change
(c) Burning of coal → Chemical change
(d) Melting of wax → Physical change
(e) Beating aluminium to make aluminium foil → Physical change
(f) Digestion of food → Chemical change
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