Y9 CHEMISTRY

. 14Metals that react quickly/strongly with water and acids are called? A. Reactive B. Unreactive C. Dangerous D. Corrosive

A

12. Order these metals from most reactive to least reactive; gold, magnesium, sodium, lead A. sodium, magnesium, lead, gold B. gold, lead, magnesium, sodium C. lead, sodium, gold, magnesium D. sodium, lead, gold, magnesium

A

18. When a metal salt reacts with a more reactive salt, what sort of reaction occurs? A. Displacement B. Neutralisation C. Combustion D. No Reaction

A

21. When copper and magnesium sulphate are mixed together, there is no reaction. Why? A. Magnesium is more reactive than copper B. Copper is more reactive than magnesium C.Copper never reacts with metal salts D. Magnesium Sulphate never reacts with metal

A

25. Which of the following will not undergo reaction? A. zinc metal + zinc oxide B. iron metal + copper oxide C. zinc metal + iron oxide D. magnesium + iron oxide

A

27. Based on the activity series, will this reaction occur? Ni (s) + HCl (aq) → A. Yes B. No

A

28. A mixture contains cobalt metal, copper metal, and tin metal. It is placed in an aqueous solution of nickel (III) nitrate. Which metals, if any, will react? A. Cobalt only B. Copper only C. Tin only D. All 3

A

31. What will be the result of : Zn + AuCl2 → A. ZnCl2 +Au B. ZnAu + Cl2 C. no reaction D. ClAu + Zn

A

35. Alkali is a base that ----------- in water A. Dissolve B. react C.solidify

A

4. Which metal is the least reactive out of: copper, magnesium, zinc and iron? A. copper B. magnesium C. zinc D. iron

A

45. Metal hydroxide + acid ------> A. salt + water B. salt + oxygen C. salt + hydrogen D. salt + water + carbon dioxide

A

43. What should be done to improve the method if a smaller mass of copper sulfate crystals is obtained than expected? (Choose more than one answer) A. Repeat the whole experiment B. Increase the temperature C. Use a different acid A. Add more water E. Heat over a water bath.

A,E

11. The reactivity series is: A. list of metals in order of similar properties B. list of metals with most reactive at the top and least reactive at the bottom C. list of metals with most reactive at the bottom and least reactive at the top D. list of metals in order of increasing atomic number

B

15. The alkali metals are in group 1, on the far left of the periodic table. Which of these is NOT an alkali metal? A. Lithium B. Iron C. Potassium D. Francium

B

2. Nitric acid reacts with sodium hydroxide solution, which of the following is the correct word equation? A. nitric acid + sodium hydroxide + water B. sodium nitrate + water C. nitric acid + sodium hydroxide

B

20. When magnesium reacts with copper sulphate, there are two products. What are they? Magnesium and Copper B. Magnesium Sulphate and Copper C. Magnesium Sulphate

B

26. Alkali metal + Water → --------------- + ------------------ A. metal hydroxide and oxygen gas B. metal hydroxide and hydrogen gas C. metal oxide and oxygen gas D. metal oxide and hydrogen gas

B

3. Which of the following is a base? A. citric acid B. copper oxide C. pure water D. vinegar

B

33. Complete: Potassium + water → ? A. Potassium oxide + hydrogen B. Potassium hydroxide + hydrogen C. Potassium hydroxide only D. Potassium oxide only

B

36. Base and acid can cancel each other when they react. the reaction of acid and base is called ...... reaction A. Displacement B. neutralization C. oxidation

B

38. What is the purpose of filtering the mixture when making copper sulfate? A. To increase the reaction rate B. To remove solid copper carbonate C. To reduce the acidity D. To form blue copper sulfate crystals

B

42. What is a base? A. A soluble alkali B. An insoluble alkali C. A miscible alkali D. An immiscible alkali

B

47. What is the final product when heating the copper sulfate solution over flame? A. Carbon dioxide gas B. blue copper sulfate crystals C. water D. solid copper carbonate

B

5. Which metal is the most reactive out of: copper, magnesium, zinc and iron? A. Copper B. magnesium C. zinc D. iron

B

6. When group 1 metals react with water, they produce a metal ______? A. Oxide B. hydroxide C. sulfate D. peroxide

B

7. How can you tell that a metal is reacting with water? A. colour change B. fizzing C. Bright light C. It gets colder

B

9. What is produced when a metal reacts with oxygen? A. metal + oxygen B. metal oxide C. water D. metal + hydrogen

B

19. As well as a gas, there is another product made when an acid reacts with a metal. What is the name for this? A. Water B. Alkali C. Salt D. Carbon

C

23. Iron nails + copper oxide →? A. Iron nails + copper oxide B. Iron oxide + copper oxide C. Iron oxide + copper

C

30. What will be the result of the following: Li + NaF -> A. Li will replace F B. Na will replace Li C. Li will replace Na D. no reaction will occur

C

32. Magnesium + ? → Magnesium chloride + hydrogen A. Sulphuric acid B. Nitric acid C. Hydrochloric acid D. Chlorine

C

34. which in the following is the right equation for reaction between metal carbonates and acid? A. Metal carbonate + hydrochloric acid → metal chloride + water + hydrogen B. Metal carbonate + hydrochloric acid → metal chloride + carbon dioxide C. Metal carbonate + hydrochloric acid → metal chloride + carbon dioxide + water

C

39. What is the purpose of using a water bath instead of a flame when heating the copper sulfate solution? A. To increase the reaction rate B. To form blue copper sulfate crystals C. To heat the solution more evenly D. To make the solution spit

C

44. Acids are substances which produce________ when you add them to water. A. H B. OH C. H+ D. OH-

C

46. What is the reason for using dilute acid in reactions. A. To prevent explosions B. to reduce the acidity C. to avoid hazards E. to increase the reaction rate

C

48. What is the gas produced in the reaction of an acid with an alkali? A. Hydrogen B. Oxygen C. none D. Carbon dioxide

C

8. Complete the general equation: Metal + Water A. Salt + Water B. Metal hydroxide + Water C. Metal Hydroxide + Hydrogen D. Salt + Hydrogen

C

1. Which gas gives out a 'squeaky pop' when a lit splint is placed in it? A. nitrogen B. oxygen C. carbon dioxide D. hydrogen

D

10. What two reactants react together to form a metal hydroxide and hydrogen? A. metal + hydrogen B. metal + oxygen C. metal + acid D. metal + water

D

13. Which of these metals is the least reactive? A. Copper B. zinc C. lithium D. silver

D

16. Able to be drawn into wire is A. Malleable B. insulator C. luster D. ductile

D

17. What else is produced when a metal reacts with water? A. Metal Oxide B. Metal Carbonate C. Metal Hydride D. Metal Hydroxide

D

22. Metals have many useful properties. For example, they... A. ----conduct electricity & heat B. ----are malleable C.-----can be stretched into wires D. All of these

D

24. What will be reaction if less reactive metal is added in a solution with more reactive metal compound? A. vigorous reaction B. fizzing gas produce C. burns moderately D. no reaction

D

29. What will be the result of the following: Br2 + NaF -> A. bromine will replace Na B. Na will replace Br C. Br will replace F D. no reaction will occur

D

37. When heating the copper carbonate powder into sulfuric acid beaker.We continue to add copper carbonate -in excess- until no more bubbles form, why? A. To decrease the reaction temperature.B. To increase the reaction temperature. C. To prevent the reaction from progressing. D. To make sure that the reaction has finished.

D

40. What is formed when a metal reacts with a carbonate? A. Water B. Carbon dioxide C.Salt D. All are formed

D

41. What is formed when sulfuric acid reacts with zinc carbonate? A. Zinc oxide B. Zinc chloride C. Zinc nitrate D. Zinc sulfate

D

49. Identify the salt in the following equation: Zn(OH)2 + HNO3 ---> H2O + Zn(NO3)2 A. Zn(OH)2 B. HNO3 C. H2O D. Zn(NO3)2

D