$Fe _{2} O _{3}+2 Al \rightarrow Al _{2} O _{3}+2 Fe$
The above reaction is an example of a
combination reaction.
displacement reaction.
decomposition reaction.
double displacement reaction.
What happens when dilute hydrochloric acid is added to iron fillings ? Tick the correct answer.
Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.
Why is the amount of gas collected in one of the test tubes in image double of the amount collected in the other ? Name this gas.
Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.