Unit 5 (Ch.19) Chemical Reactions
Quiz by Kate Downey
Feel free to use or edit a copy
includes Teacher and Student dashboards
Measure skillsfrom any curriculum
Measure skills
from any curriculum
Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.
With a free account, teachers can
- edit the questions
- save a copy for later
- start a class game
- automatically assign follow-up activities based on students’ scores
- assign as homework
- share a link with colleagues
- print as a bubble sheet
55 questions
Show answers
- Q1A chemical reaction may be sped up by:heating the reactantsusing more concentrated reactantsusing more finely ground reactantsall of the above30s
- Q2A Precipitate is:A substance dissolved in a liquidA rocky edgeA change in solution colour during a chemical changeA solid formed from a chemical reaction30s
- Q3Complete the following chemical reaction: zinc + copper chloride -> copper + ?zinc chloridezincchloridecopper zinc30s
- Q4A catalystspeeds up a chemical reaction without actually combining with reactantsis one of the ‘ingredients’ in a chemical reactionis a large molecule that is broken down by a smaller onedissolves chemicals that water is unable to30s
- Q5In a reaction with hydrochloric acid, powdered magnesium reacts faster than the same mass of magnesium ribbon. Why is this?The powdered magnesium had a catalyst addedThe powdered magnesium contains more atoms than the magnesium ribbonThe powdered magnesium is hotter than the magnesium ribbonThe powdered magnesium has a bigger surface area than the magnesium ribbon.30s
- Q6Which of the following is a chemical change?Sawdust is produced from wood being cut by a power sawJuice is obtained from an orangeWater freezes to form iceFireworks explode in a colourful display30s
- Q7Chopping vegetables before cooking increases their reaction rate. The factor that helps with the increase in the reaction rate is _____.increased concentration of vegetablesincreased surface areaincreased temperaturedecreased surface area30s
- Q8In the chemical reaction: iron + sulfur -> iron sulfidesulfide is the productiron sulfide is the productiron, sulfur and iron sulfide are productsiron and sulfur are products30s
- Q9Marble reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide. In which of these mixtures is the rate of reaction likely to be the greatest?1g of marble chips in 100cm3 of hydrochloric acid at 30°C.1g of powdered marble in 100cm3 of hydrochloric acid at 30°C1g of powdered marble in 100cm3 of hydrochloric acid at 20°C1g of marble chips in 100cm3 of hydrochloric acid at 20°C30s
- Q10The following is an example of which reaction? CH4 + O2(g) -> CO2(g) + H2O(g)decompositionsingle replacementcombustiondouble replacement30s
- Q11The following is an example of which reaction? MgBr2(aq) + NaCl(aq) -> MgCl2(aq) + NaBr(aq)synthesissingle replacementdecompositiondouble replacement30s
- Q12The following is an example of what type of reaction? Lead nitrate reacts with potassium iodide to form lead iodide and potassium nitrate.decompositiondouble replacementsynthesissingle replacement30s
- Q13Consider the reaction represented by the chemical equation: NO3(aq) + NaCl(s) -> NO3Cl(aq) + Na(s) What type of chemical reaction is this?single replacementsynthesisdouble replacementdecomposition30s
- Q14The following is an example of which reaction? NH3(l) + H20(l) -> NH4OH(aq)synthesisdouble replacementsingle replacementdecomposition30s
- Q15Consider the reaction represented by the chemical equation: AgNO3(aq) + NaCl(s) -> AgCl(s) + NaNO3(aq) What are the products?AgCl(s)NaNO3(aq)AgCl(s) + NaNO3(aq)AgNO3(aq) + NaCl(s)30s