1.Which of the following demonstrate s a chemical reaction?
a. Boiling water
b. Lighting incen...
1.Which of the following demonstrate s a chemical reaction?
a. Boiling water
b. Lighting incense sticks
c. Melting ice cubes
d. Subliming mothballs
2.which following is a chemical reaction
a. salt dissolved in water
b. Food spoilage
c. crystallization of fish sauce
d. Melting ice cream
Answers: 2
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Describe at least two advantages and two disadvantages of using hydropower as a source of energy.
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