The starter and exit quiz of the lesson “Exothermic and endothermic chemical reactions”, from the unit “Fuels and energetics” (Year 8 Science) by Oak National Academy.
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Oak National Academy
12 questions
Match the following terms to their definitions.
True or false? A change of state indicates that a chemical reaction has taken place.
Which of the following are examples of chemical reactions?
Hydrogen gas and magnesium chloride are formed when magnesium reacts with hydrochloric acid. Which of the following represents the chemical equation for the reaction?
Burning is an example of ...Select two correct answers.
Calculate the mass of carbon dioxide formed when 13.5 g of calcium carbonate reacts to form 7.6 g of calcium oxide. calcium carbonate → calcium oxide + carbon dioxide
Match the following terms to their definitions.
Endothermic reactions cause ...
Which of the following are reactions that are usually exothermic?
The method for finding the lowest temperature of a reaction has been mixed up.Starting with measuring the volume of solution, sort the following steps into the correct order.
A pupil monitored the temperature of a reaction. The start temperature was 20°C and the end temperature 15°C. Which of the following statements about the reaction are correct?
True or false? After an exothermic reaction, the products of the reaction contain more energy than the reactants.
