Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Inorganic Chemistry
869 practice questions
Topics covered
- The Alkali Metals85 practice questions
- The Halogens86 practice questions
- Gases in the Atmosphere86 practice questions
- Reactivity Series163 practice questions
- Extraction and Uses of Metals128 practice questions
- Acids, Alkalis and Titrations83 practice questions
- Acids, Bases and Salt Preparations156 practice questions
- Chemical Tests68 practice questions
Practice questions
321–330 of 869
Question 321
3 marks · Easy
Answer and see the solution →Zinc is heated in steam according to the equation:
(a)[2 marks]Name two products formed in this reaction.
(b)[1 mark]State the colour of zinc oxide when it has just formed (hot).
Question 322
2 marks · Easy
Answer and see the solution →Copper is used for water pipes, even for hot water. Using the reactivity series, explain why copper does not react with either cold water or steam.
Question 323
2 marks · Easy
Answer and see the solution →A student heats 2.00 g of zinc powder in steam using the following equation:
Calculate the maximum mass of hydrogen gas, in grams, that can be produced.
Question 324
2 marks · Normal
Answer and see the solution →State the general word equations for:
(a)[1 mark]the reaction of a metal with cold water,
(b)[1 mark]the reaction of a metal with steam.
Question 325
4 marks · Normal
Answer and see the solution →Potassium, sodium, lithium, and calcium all react with cold water, but in different ways.
(a)[2 marks]Describe two observations you would make when potassium is added to cold water.
(b)[2 marks]Explain what happens to calcium granules when they are added to cold water.
Question 326
3 marks · Normal
Answer and see the solution →Explain, using the reactivity series, why copper is suitable for use in water pipes but zinc is not.
Question 327
4 marks · Normal
Answer and see the solution →The following table lists four metals and the conditions under which they react with water:
Metals, type of water present, and observed reaction. Metal Condition Observation Sodium cold water Magnesium cold water Magnesium steam Copper steam Complete the table with the observations you would expect for each case.
Question 328
1 mark · Normal
Answer and check →Which observation is typical when lithium is added to cold water?
- A.A lilac flame appears above the water.
- B.The metal floats, fizzes, and moves slowly on the surface.
- C.The water becomes orange and the metal disappears with no gas.
- D.A yellow solid is immediately formed in the water.
Question 329
2 marks · Normal
Answer and see the solution →Name the solid products formed when:
(a)[1 mark]zinc reacts with steam,
(b)[1 mark]iron reacts with steam.
Question 330
4 marks · Normal
Answer and see the solution →Some metals do not react with water or steam.
(a)[2 marks]State whether aluminium reacts with steam and explain your answer with reference to its oxide layer.
(b)[2 marks]Explain why copper does not react with cold water or steam.