Ch8.3/8.4 Chemical reactions
Quiz by Alison Tandy
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10 questions
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- Q1The substances you begin with in a chemical reaction are:ReactantsProducts30s
- Q2In this word equation, what are the reactants? oxygen + iron --> iron oxideiron and iron oxideiron oxideoxygen and ironoxygen and iron oxide30s
- Q3The substances you end with in a chemical reaction are called:ProductsReactants30s
- Q4In this word equation, what are the products? oxygen + iron --> iron oxideiron and iron oxideoxygen and iron oxideiron oxideoxygen and iron30s
- Q5What is the correct word equation for magnesium reacting in hydrochloric acid to release bubbles of hydrogen gas in magnesium chloride?magnesium + hydrogen gas --> hydrochloric acid + magnesium chloridemagnesium + hydrochloric acid --> hydrogen gas + magnesium chloridehydrogen gas + magnesium chloride --> magnesium + hydrochloric acid30s
- Q6What is meant by 'reaction rate'?The quantity of a product given by a reactionThe quantity of reactants used to make a reactionThe speed of a reaction30s
- Q7A substance that speeds up a reaction but is not used up or changed in the reaction is called a:productreactantcatalyst30s
- Q8When a catalyst is made by a living thing to speed up digestion, it is called:a reactanta biologistan enzyme30s
- Q9Which of the following actions will speed up the rate of reaction?increasing the quantity or surface area of reactantsremoving a catalystcooling it down30s
- Q10Which of the following actions will slow down the rate of reaction?Adding a catalystIncreasing the quantity or surface area of reactantsCooling it30s