KS3 Science-Chemistry Quiz on "SIMPLE CHEMICAL REACTIONS" (based on QCA 7F)

Which gas is formed when a metal reacts with an acid? [7f-1]
1. hydrogen
2. oxygen
3. carbon dioxide
4. methane
Which gas is needed for any fuel to burn? [7f-2]
1. hydrogen
2. oxygen
3. carbon dioxide
4. methane
Which gas is formed when a carbonate reacts with acid? [7f-3]
1. hydrogen
2. oxygen
3. carbon dioxide
4. methane
Which gas is a naturally occuring fuel? [7f-4]
1. hydrogen
2. oxygen
3. carbon dioxide
4. methane
In a chemistry experiment, which word means what you start with? [7f-5]
1. reactant
2. product
3. equation
4. evaluation
In a chemistry experiment, which word means what you end up with? [7f-6]
1. reactant
2. product
3. equation
4. evaluation
In a chemistry experiment, which word represents the overall change? [7f-7]
1. reactant
2. product
3. equation
4. evaluation
In a chemistry preparation experiment, which word means how well it has gone? [7f-8]
1. reactant
2. product
3. equation
4. evaluation
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change has happened, and new substances have been formed? [7f-9]
1. the colour changes
2. no gas bubbles form
3. the mixture doesn't change temperature
4. a clear solution is formed
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change has happened, and new substances have been formed? [7f-10]
1. there is no colour change
2. gas bubbles form
3. the mixture doesn't change temperature
4. no precipitate forms (a solid forming out of mixing solutions)
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change has happened, and new substances have been formed? [7f-11]
1. there is no colour change
2. no gas bubbles form
3. the mixture changes temperature
4. a clear solution is formed
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change has happened, and new substances have been formed? [7f-12]
1. there is no colour change
2. no gas bubbles form
3. the temperature stays the same
4. a precipitate forms (a solid forming out of mixing solutions)
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when an acid is mixed with an alkali with litmus paper in it? [7f-13]
1. there is a colour change
2. no gas bubbles form
3. the mixture does not change temperature
4. no precipitate forms (a solid forming out of mixing solutions)
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when a suspected carbonate is added to an acid? [7f-14]
1. there is no colour change
2. gas bubbles form
3. the temperature stays the same
4. a clear solution is formed
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when a fuel burns? [7f-15]
1. there is a coloured flame
2. no gas bubbles form
3. the mixture changes temperature
4. a clear solution is formed
A variety of observations can indicate whether or not a chemical reaction is happening when chemicals are mixed. Which of the following is most likely to indicate a chemical change when carbon dioxide is passed into limewater? [7f-16]
1. there is no colour change
2. no gas bubbles form
3. the temperature stays the same
4. a precipitate forms (a solid forming out of mixing solutions)
Which of the following best describes what is formed when methane reacts with oxygen? [7f-17]
1. carbon dioxide + water
2. salt + hydrogen
3. salt + water + carbon dioxide
4. an oxide
Which of the following is formed when a metal reacts with an acid? [7f-18]
1. carbon dioxide + water
2. salt + hydrogen
3. salt + water + carbon dioxide
4. an oxide
Which of the following is formed when a carbonate reacts with an acid? [7f-19]
1. carbon dioxide + water
2. salt + hydrogen
3. salt + water + carbon dioxide
4. an oxide
Which of the following is always formed when an element reacts with oxygen? [7f-20]
1. carbon dioxide + water
2. salt + hydrogen
3. salt + water + carbon dioxide
4. an oxide
Which of the following is the test for carbon dioxide gas? [7f-21]
1. the gas is bubbled into limewater
2. a glowing wooden splint is placed in the gas
3. a lit wooden splint is placed in the gas
4. damp blue litmus is placed in the gas
Which of the following is the test for oxygen gas? [7f-22]
1. the gas is bubbled into limewater
2. a glowing wooden splint is placed in the gas
3. a lit wooden splint is placed in the gas
4. damp blue litmus is placed in the gas
Which of the following is the test for hydrogen gas? [7f-23]
1. the gas is bubbled into limewater
2. a glowing wooden splint is placed in the gas
3. a lit wooden splint is placed in the gas
4. damp blue litmus is placed in the gas
Which of the following is the test for chlorine gas? [7f-24]
1. the gas is bubbled into limewater
2. a glowing wooden splint is placed in the gas
3. a lit wooden splint is placed in the gas
4. damp blue litmus is placed in the gas
When substance W was added to an acid, a colourless gas was formed that gave a squeaky pop with a lit splint. W is most likely to be a? [7f-25]
1. metal
2. metal carbonate
3. metal oxide
4. metal hydroxide
When substance X was added to an acid, a colourless gas formed that turned limewater 'milky'. X is most likely to be a? [7f-26]
1. metal
2. metal carbonate
3. metal oxide
4. metal hydroxide
When substance Y was added to an acid, the resulting solution turned green with universal indicator, and no gas bubbles were seen. Y is most likely to be a? [7f-27]
1. metal
2. metal carbonate
3. metal oxide
4. non-metal carbonate
Which of the following shows no reaction with acid? [7f-28]
1. magnesium
2. magnesium carbonate
3. copper carbonate
4. copper
Which of the following reacts fast with acids to form hydrogen? [7f-29]
1. magnesium
2. magnesium carbonate
3. copper carbonate
4. copper
Which of the following reacts with acid to form carbon dioxide gas and a colourless solution? [7f-30]

KS3 Science-Chemistry Quiz on "SIMPLE CHEMICAL REACTIONS" (based on QCA 7F)

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