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Aliun [14]
2 years ago
13

A)

Chemistry
1 answer:
jeka57 [31]2 years ago
4 0

Answer:

Explanation:

a )

From the graph given , energy of reactant = 0

b )

energy of product = -15 kJ

c )

ΔH =   energy of product - energy of reactant

= -15 - 0  = - 15 kJ

ΔH is negative  so reaction is exothermic .

d ) Activation energy = 25 - 0 = 25 kJ .

e ) Energy released = 15 kJ .

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The field of study which is shown in the picture is known as archaeology and is denoted as option D.

<h3>What is Archaeology?</h3>

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This is usually done by a professional referred to as an archaeologist who uses special techniques and methods in the execution of the processes involved.

In the diagram attached in the picture shown below, we can view rocks present which helps to preserve fossils.This is therefore the reason why archaeology was chosen as the most appropriate choice.

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1 year ago
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Explanation:

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3 years ago
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igor_vitrenko [27]

Answer:

False

Explanation:

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