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valina [46]
2 years ago
12

Which energy transformation occurs in an endothermic reaction

Chemistry
1 answer:
anygoal [31]2 years ago
8 0

Answer:

heat energy

Explanation:

Chemical reactions often involve changes in energy due to the breaking and formation of bonds. Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic.

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How is the polarity of a bond different from the polarity of a molecule?
Andreyy89

Answer:

A polar bond is one where the charge distribution between the two atoms in the bond is unequal. A polar molecule is one where the charge distribution around the molecule is not symmetric. It results from having polar bonds and also a molecular structure where the bond polarities do not cancel.

Explanation:

8 0
2 years ago
14. What volume (mL) of water do I need to add to 425
Reptile [31]

Answer:

212.5 mL

both the original and the diluted solution have 0.765 moles of KCl

Explanation:

c1V1 = c2V2

V2 = c1V1/c2 = (1.8 M×425 mL)/1.2 M = 637.5 mL

(637.5 - 425) mL = 212.5 mL

n = (1.8 mol/L)(0.425 L) = 0.765 moles of KCl

since it's a dilution, the diluted solution has the same number of moles as the original solution, 0.765 moles of KCl

7 0
3 years ago
Hey, i need help. the teacher provided notes but they don’t explain ANYTHING.
Arlecino [84]

Answer:

I think

1. A

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3. 100

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Explanation:

Ijust want to help, but I also want brainliest

5 0
3 years ago
How US is the most developed country?
8090 [49]
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6 0
3 years ago
In living things what is the source of the carbon-14 that is used in radiocarbon dating
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In living things, the source of the carbon-14 that is used in radiocarbon dating is carbon dioxide in the atmosphere.
Living things inhale oxygen, and exhale carbon dioxide into the atmosphere, which is why the air and atmosphere are so full of it.
5 0
3 years ago
Read 2 more answers
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