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Black_prince [1.1K]
2 years ago
7

Please help due today!

Chemistry
1 answer:
TEA [102]2 years ago
8 0

for the first one it is B OR THE SECOND OPTION

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Which of the following is an example of a compounds?
wlad13 [49]

Answer:b.CaCl2

Explanation:

A compound is  a substance resulting when two or more elements  are are chemically bonded together either ionically or covalently in a fixed ratio.

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5 0
2 years ago
A chemical reaction produces 653 550 kj of energy as heat in 142.3min. calculate the rate of energy transferred in kj per minute
miskamm [114]

We have the value of  

Total energy produced in the chemical reaction=653 550 KJ  

Time needed=142.3min  

To calculate the rate of energy transfer, that is the amount of energy produced per minute.  

Rate of energy transfer=\frac{Total energy produced}{Time needed}

=\frac{653 550}{142.3}

=4592.76 KJ min⁻¹

So, the rate of energy transfer is 4592.76 KJ min⁻¹.

6 0
3 years ago
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7 0
3 years ago
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Answer:

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