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Alternative experiments to back up results collected for: H2O2 —> 2H2O + 02?

I have been doing the investigation on how temperature affects the rate of reaction, using hydrogen peroxide and peas. With the equation being: H2O2 —> 2H2O + 02.

I was wondering whether there is another experiment i would be able to do which would collaborate and help me check my existing results?

Thanks