Chemical reaction and equations worksheet-1
Fill in the Blanks:
CO2(s) → CO2(g) is a __________ change.
Water evaporates from the surface of the ocean. It is a _________change.
Change in odor, or color is a_______ change.
Rusting is a__________ change.
Cutting of trees is a__________ change.
Rusting of iron occurs due to __________.(Oxidation/reduction)
The balanced equation has __________ molecules of water.
The balanced equation has ________ molecules of Aluminium hydroxide.
Chemical reaction and equations worksheet-2
Fill in the Blanks:
________ is an antioxidant commonly used to prevent rancidity of food.
Food scraps are turned into compost in a compost pile is a _______ change.
Clotting of blood using alum is a _______ change.
Latent finger prints (invisible to eye) are made visible by_______ change.
In the stomach proteins are digested. It is a _______ change.
Rancidity of food is _______ change.
_______ occurs due to aerial oxidation of fats and oils in foods marked by unpleasant smell and taste.
Chemical reaction and equations worksheet-3
Multiple Choice Questions:
(A) Hydrogen chloride (B) Sulphuric acid
(C) Alcohol (D) Water
(E) Sodium hydroxide
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