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monitta
3 years ago
6

An exothermic reaction has a positive enthalpy (heat) of reaction.(T/F)

Chemistry
2 answers:
mestny [16]3 years ago
5 0

Answer:

True.

Explanation:

An exothermic reaction has a positive enthalpy (heat) of reaction. However, it can be negative in some circumstances.

Temka [501]3 years ago
4 0

Answer:

True.

Explanation:

True, An exothermic reaction has a positive enthalpy (heat) of reaction.

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What is the full meaning of DR.HERC.​
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Answer:

It is

D- <u><em>DEFINE</em></u> the problem

R-<em><u>RESEARCH</u></em> on the problem

H- Carry out a <u><em>HYPOTHESIS</em></u>

E- carry out an <em><u>EXPERIMENT</u></em>.

R-Analyse the <u><em>RESULT</em></u>

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Explanation:

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3 years ago
How are plant cells different from animal cells?
marusya05 [52]

Answer:

b.

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8 0
3 years ago
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kirza4 [7]

Answer:

<h2>The answer is 3.2 g/L</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

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volume = final volume of water - initial volume of water

volume = 125 - 100 = 25 L

The density of the cat is

density =  \frac{400}{125}  =  \frac{16}{5}  \\

We have the final answer as

<h3>3.2 g/L</h3>

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3 0
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