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snow_tiger [21]
3 years ago
15

NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Physics
1 answer:
kati45 [8]3 years ago
6 0
A catalyst is a substance that alters the reaction and doesn't involve in the reaction.So if the Manganese was a catalyst the mass would not have decreased,it would just continue aletring the reaction until its used up.
The Manganese is not acting as a catalyst
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