
Rate of reaction
Quiz by Dr Chemistry
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6 questions
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- Q1What factor affects the rate of a chemical reaction?PressureTemperatureCatalystConcentration30s
- Q2Which of the following factors does NOT affect the rate of a reaction?Surface areaTemperaturePresence of a catalystColor of reactants30s
- Q3What is the effect of increasing temperature on the rate of a reaction?Completely stops the reactionSpeeds up the reactionSlows down the reactionHas no effect on the reaction rate30s
- Q4How does increasing the concentration of reactants affect the rate of a reaction?Has no effect on the reaction rateStops the reaction completelyDecreases the rate of the reactionIncreases the rate of the reaction30s
- Q5A student investigated the rate of reaction between calcium carbonate (marble chips) and hydrochloric acid. The student had collected 30 cm3 of gas produced after 15 seconds. Calculate the mean rate of reaction from 0 to 15 seconds.3 cm3/s5 cm3/s4 cm3/s2 cm3/s30s
- Q6A student investigated the rate of reaction between calcium carbonate (marble chips) and hydrochloric acid. The student had recorded an initial reactant mass of 27 g. The mass of the product recorded was 24.9 g after 30 seconds. Calculate the mean rate of reaction from 0 to 30 seconds.0.7g/s0.007 g/s0.07 g/s7 g/s30s