Measurement, Mass & Equations (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
9 questions from this quiz
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Practise the questions
9 questions from this quiz
Why might mass appear to change in some chemical reactions?
Why might mass appear to change in some chemical reactions?
Gases can escape or enter the container
What happens when calcium carbonate is heated?
What happens when calcium carbonate is heated?
Forms calcium oxide and carbon dioxide
Why does mass appear to decrease when heating in an open container?
Why does mass appear to decrease when heating in an open container?
Carbon dioxide gas escapes
What forms when iron reacts with oxygen from the air?
What forms when iron reacts with oxygen from the air?
Iron oxide (rust)
Why does iron appear to gain mass when it rusts?
Why does iron appear to gain mass when it rusts?
Oxygen from air combines with it
Which gas escapes during the decomposition of calcium carbonate?
Which gas escapes during the decomposition of calcium carbonate?
Carbon dioxide
In which type of container can escape during decomposition?
In which type of container can escape during decomposition?
Open container
What is the principle underlying all chemical reactions regarding mass?
What is the principle underlying all chemical reactions regarding mass?
Mass is conserved
Which element from air combines with iron during rusting?
Which element from air combines with iron during rusting?
Oxygen