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LenaWriter [7]
3 years ago
6

Does temperature change during a chemical reaction?​

Chemistry
2 answers:
Serga [27]3 years ago
7 0

Answer: Yes

Explanation: Temperature change is a type of chemical reaction, caused by the effect the two reactants have on each other when mixed.

Anarel [89]3 years ago
4 0

Answer: yes

Explanation:

Not all the time, but temperature change can happen during a chemical reaction.

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An unknown radioactive substance has a half-life of 3.20hours . If 46.2g of the substance is currently present, what mass A0 was
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a) a0 was 46.2 grams

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<em>An unknown radioactive substance has a half-life of 3.20hours . If 46.2g of the substance is currently present, what mass A0 was present 8.00 hours ago?</em>

A = A0 * (1/2)^(t/h)

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<em>Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432 years. How long will it take in years for 34.0% of an Am-241 sample to decay?</em>  

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<em>A fossil was analyzed and determined to have a carbon-14 level that is 80% that of living organisms. The half-life of C-14 is 5730 years. How old is the fossil?</em>

<em />

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3 years ago
He chemical formula for lithium hydride is LiH A chemist determined by measurements that 0.0800 moles of lithium hydride partici
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