1) Which one of these has the fastest reaction? a) An egg being fried b) Iron rusting c) A firework exploding 2) Which of these has the slowest rate of reaction? a) Wood rotting b) Magnesium being burnt c) Zinc reacting with hydrochloric acid 3) How can we speed up a rate of reaction? a) Diluting the concentration of acid b) Increasing the concentration of acid c) Using a bigger test tube 4) Which of these is not a chemical reaction? a) Baking a cake b) Burning wood c) Dissolving salt and water 5) A reaction stops when... a) It is told to b) When there are no reactants left c) It starts to bubble 6) Which of these can speed up a reaction of acid and metal? a) Adding heat b) Keeping the reaction cold c) Diluting the acid 7) Which of these would react the quickest? a) A dilute concentration of acid b) One large lump of metal c) A fine powder of metal 8) How does a catalyst increase the rate of reaction? a) Provides an alternative pathway with lower activation energy b) Changes the products formed c) Provides an alternative pathway with higher activation energy 9) Why does increasing the concentration increase the rate of reaction? a) Increases the energy of the particles b) Increases the number of particles in the same volume c) Increases the space for collisions to occur 10) How can you test for carbon dioxide? a) Turns limewater cloudy b) Squeaky pop c) Relights a glowing splint d) Bleaches litmus paper

Rates of Reaction Quiz

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