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Elan Coil [88]
3 years ago
15

CHEMISTRY HELP PLEASE?!?! WILL MARK BRAINLIEST ANSWER! help a mate out? :((

Chemistry
1 answer:
Zolol [24]3 years ago
7 0
The attachments dont work, they say that they have been taken down or sum... ?
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Hydrogen peroxide can decompose to water and oxygen by the following reaction
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To begin calculating, there is one thing you need to remember :1 mole of H2O2=34.0148 g
Then we have 5.00g of H2O2=5/34.0148=0.146995
As you know decomposition of 2moles now has prodused <span>196kj
So, </span><span>q is made due </span>0.146995 moles of H2O2=(-196/2)*0.146995=-14.40551Kj
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