Chemical Change Worksheet
Explore the fundamental concepts of chemical change, including indicators, types of reactions, and balancing equations.
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Chemical Change Worksheet
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Read each question carefully and provide the best answer. This worksheet assesses your understanding of chemical changes.
1. Which of the following is an indicator of a chemical change?
Change in state (solid to liquid)
Dissolving sugar in water
Formation of a new substance
Cutting paper into smaller pieces
2. What type of chemical reaction involves two or more reactants combining to form a single product?
Decomposition reaction
Combination reaction
Single displacement reaction
Double displacement reaction
1. Burning wood is an example of a physical change.
True
False
2. A precipitate is a solid that forms from a solution during a chemical reaction.
True
False
1. The law of conservation of mass states that matter cannot be created or in a chemical reaction.
2. A chemical equation is balanced when there are equal numbers of each type of on both sides of the equation.
1. List three observable indicators that a chemical change has occurred.
2. Differentiate between an exothermic and an endothermic reaction.
Observe the image above, which shows the Belousov-Zhabotinsky reaction. This is a classic example of a complex chemical reaction.
3. Describe one characteristic of the Belousov-Zhabotinsky reaction that indicates it is a chemical change.