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zheka24 [161]
3 years ago
9

A coffee cup calorimeter will not be used to directly measure the enthalpy of magnesium combustion because

Chemistry
2 answers:
yanalaym [24]3 years ago
8 0

Answer:

A coffee cup calorimeter is great for measuring heat flow in a solution, but it can't be used for reactions that involve gases since they would escape from the cup. The coffee cup calorimeter can't be used for high-temperature reactions, either, because they would melt the cup.

Goryan [66]3 years ago
3 0

Answer:

The coffee cups could melt

Explanation:

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Half life is the time that it takes for half of the original value of some amount of a radioactive element to decay.

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A is the resulting amount after t time

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A=\text{ 50 }\times2^{\frac{-t}{14.3}}

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To know the P-32 remaining after 84 days we have to replace this value in the equation:

\begin{gathered} A=\text{ 50 }\times2^{\frac{-84}{14.3}} \\ A=0.85\text{ mg} \end{gathered}

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1 year ago
Please help!! I don’t think I did this right.?
harkovskaia [24]

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Explanation:

8 0
3 years ago
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Explanation:

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