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s2008m [1.1K]
3 years ago
11

Calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxid

e from these reactions. round your answer to the nearest kj .

Chemistry
1 answer:
Zielflug [23.3K]3 years ago
5 0
Check the attached file for the answer.

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How many joules of heat are required to raise the temperature of 174g of gold from 22°C to 85°C? The specific heat of gold is 0.
Slav-nsk [51]
Remembering the equation Q=MCdeltaT where
q=is the amount of heat energy
M=mass
C=specific heat
deltaT= change in temperature

Therefore, using the equation we can substitute values and solve for q.
Q= (15 grams) (0.129 J/(gx°C))(85-22)
Q=(15) ((0.129 J/(gx°C)) (63)
Q=121.9 Joules

The energy needed to raise the temperature of 15 grams of gold from 22 degrees Celsius to 85 degrees Celsius is then 121.9 Joules or 122 Joules (if rounded up).

7 0
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The distances from large bodies of water will affect the average rainfall of an area. (Example: Florida has more rain than Nevad
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Answer:

A

Explanation:

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Most elements occur in nature as a single isotope.<br> TRUE<br> FALSE
cestrela7 [59]

Answer:

false

Explanation:

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8 0
3 years ago
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A green rat snake that lives in the grass and a brown rat snake that lives in the desert is a form of what ?
liberstina [14]

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When two species get separated by habitat their breeding method changes either by morphology or breeding pattern.

Such species do not produce viable offspring.

Thus a green rat snake and a brown rat snake have very different habitats they are now two different species.

Such species are said to be reproductively isolated species. Two species having genetic divergence undergo natural selection to adapt to the environment.

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Explanation:

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