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NemiM [27]
2 years ago
11

T or F? Sometimes energy is lost during a chemical reaction.

Chemistry
2 answers:
netineya [11]2 years ago
8 0

Answer:

True.

Energy can be sometimes lost in chemical reactions.

Explanation:

amid [387]2 years ago
6 0

Answer: True.

Explanation:

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3.0 L of oxygen gas is heated from 100k to 250k. What is the new volume after the temperature has been increased???
alexandr402 [8]

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7.5 L

Explanation:

Using Charles' law, which is V1/T1=V2/T2, we can plug in these numbers to find the answer.  The law states that volume is directly proportional to temperature. 3.0L/100K = x L / 250 K. Solve for x to get 7.5 L. Hope this helps.

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3 years ago
A 100 kg tree gets struck by lightning and is burned completely to ash. A scientist gathers up all the ash and weighs it to find
Oksi-84 [34.3K]

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Evaporated via combustion.

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The 10kg lost could be moisture content of the tree, or other volatile matter which has escaped on combustion of the tree.

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