Exothermic and Endothermic Reactions
Chemistry ⇒ Chemical Reactions and Equations
Exothermic and Endothermic Reactions starts at 8 and continues till grade 12.
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See sample questions for grade 8
A chemical cold pack contains ammonium nitrate and water. When activated, the pack becomes cold. What type of reaction is occurring?
A student mixes barium hydroxide and ammonium chloride and observes the beaker becomes very cold. What type of reaction is this?
A student observes that when two chemicals are mixed, the temperature of the mixture increases. What type of reaction is this?
Describe the energy changes that occur during an exothermic reaction.
Describe what happens to the temperature of the surroundings during an endothermic reaction.
Explain why melting of ice is considered an endothermic process.
Explain why photosynthesis is considered an endothermic reaction.
Explain why the reaction between hydrochloric acid and sodium hydroxide is considered exothermic.
State one everyday example of an exothermic reaction.
When ammonium nitrate is dissolved in water, the temperature of the solution decreases. Is this process exothermic or endothermic?
