Group Quiz pH, Acids and Bases

For each of the following, state if they are true or false i) Vinegar is an acid ii) Shampoo is slightly acidic iii) Lollies are neutral Question 1/18

i) An acid is a substance that releases _____________ ions i) An acid is a substance that releases _____________ ions. ii) A base is a substance that releases _____________ _____. Question 2/18

Classify each of the following as a property of acid or a base Turns red litmus paper blue Neutralises a base Feels soapy/slippery Corrodes metals Question 3/18

pH stands for “The power of _____________” Question 4/18

Indicators are chemicals that ___________ ___________ to show if a substance is acidic, basic or neutral. Question 5/18

The pH scale runs on a scale from _____ to _____. Question 6/18

The more hydrogen ions, the lower/higher (select the correct word) the pH. Question 7/18

Which is used to treat heartburn, acids or bases? Question 8/18

Classify the following as an acid or a base Classify the following as an acid or a base. i) HNO3 ii) Sodium Hydroxide iii) HCl iv) KOH v) Ammonia vi) H2SO4 Question 9/18

Complete the following general equation: Acid + _________  __________ + hydrogen gas Question 10/18

A salt is made up of a ________________ charged cation and a ____________ charged anion. A ____________ is usually a metal ion and an anion is usually a ____________ _____ Question 11/18

HCl + Al  ___________ + ______ Try and balance the equation. Question 12/18

What test can be used to test whether hydrogen gas is produced in a chemical reaction? Question 13/18

Acids react with ________________ to produce ___________________ gas as well as ____________ and _____________. Question 14/18

Na2CO3 + _________ NaCl + _____ + CO2 Question 15/18

Sulfuric acid + sodium hydroxide  _________ +___________ Question 16/18

What are the possible products that can be produced from incomplete combustion. Question 17/18

Methane gas (CH4 ) goes through incomplete combustion Methane gas (CH4 ) goes through incomplete combustion. Write a chemical formula equation to represent this reaction. Question 18/18

The End : Answers

For each of the following, state if they are true or false i) Vinegar is an acid ii) Shampoo is slightly acidic iii) Lollies are neutral (3 marks) True False Question 1

Question 2 An acid is a substance that releases _____________ ions. A base is a substance that releases ___________________. Hydrogen Hydroxide Question 2

Classify each of the following as a property of acid or a base Turns red litmus paper blue Neutralises a base Feels soapy/slippery Corrodes metals (4 marks) Base Acid Question 3

pH stands for “The power of _____________” Hydrogen Question 4

Indicators are chemicals that ____________ _____________ to show if a substance is acidic, basic or neutral. (2 marks) Change colour Question 5

Question 6 The pH scale runs on a scale from ___ to ___. (2 marks)

The more hydrogen ions, the lower/higher (select the correct word) the pH. Question 7

Which is used to treat heartburn, acids or bases? Question 8

Classify the following as an acid or a base Classify the following as an acid or a base. i) HNO3 ii) Sodium Hydroxide iii) HCl iv) KOH v) Ammonia vi) H2SO4 (6 marks) Acid Base Question 9

Question 10 Complete the following general equation: Acid + ______ ______+ hydrogen gas (2 marks) Metal  Salt Question 10

A salt is made up of a ______________charged cation and a ______________charged anion. A __________is usually a metal ion and an anion is usually a ________________. (4 marks) Positively Negatively Cation Non-metal ion Question 11

What test can be used to test whether hydrogen gas is produced in a chemical reaction? Pop Test Question 13

HCl + Al _______________ + _________ One mark for correct products and one mark for balancing 6HCl + 2Al 2AlCl3 + 3H2 Question 12

Acids react with ___________to produce ___________ ___________ gas as well as ___________ and ___________. (4 marks) Carbonate Carbon Dioxide Salt Water Question 14

Question 15 Na2CO3 + _________ NaCl + _____ + CO2 1 mark for correct reactant and product and 1 mark for balancing. Na2CO3 + 2HCl 2NaCl + H2O + CO2 Question 15

Question 16 Sodium sulfate + Water Sulfuric acid + sodium hydroxide  ________________ + _______ (2 marks) Sodium sulfate + Water Question 16

What are the three different possible products that can be produced from incomplete combustion. (3 marks) Carbon Monoxide Carbon/soot Water Question 17

Butane gas (C4H 10) goes through incomplete combustion Butane gas (C4H 10) goes through incomplete combustion. Write a chemical formula equation to represent this reaction. Make sure to balance it. (1 mark for correct reactants and product, and 1 marks for balancing correctly) 2C4H10 + 13O2 8CO2 + 10H2O Question 18

Give yourself a mark out of 44.