Edexcel Gcse Chemistry/additional Science - Unit C2: Discovering Chemistry Page 6
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(ii) The experiment is repeated using warm,
instead of cold, acid.
State the difference you would SEE when the
marble chips react with warm, instead of cold,
acid. (1 mark)
_________________________________________________________
_________________________________________________________
_________________________________________________________
(iii) Explain what must be done to the marble
chips so that the reaction with the warm, dilute
hydrochloric acid is even faster. (2 marks)
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
(Total for Question 1 = 8 marks)
(Questions continue on next page)
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