18. The set-up below is used to investigate the properties of hydro Copper (0)
Oxide
Dry hydrogen
gas
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WA
i) On the diagram, indicate what is emitted for the reaction to occur
ii) Hydrogen gas is allowed to pass through the tube for some time before it is lit. Expla
iii) Write an equation for the reaction that occurs in the combustion tube
iv) When the reaction is complete, hydrogen gas is passed through the apparatus until
v) What property of hydrogen is being investigated?
vi) What observation confirms the property stated in (v) above?
vii) Why is zinc oxide not used to investigate this property of hydrogen gas?
cool down. Explain