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Feliz [49]
3 years ago
8

Which of the following reactions is endothermic?

Chemistry
2 answers:
ohaa [14]3 years ago
4 0

The answer is D

Hope that helps :)

-Asmaa Ghazzawi

aivan3 [116]3 years ago
3 0

Thermic is referring to heat. So, an endothermic reaction would be absorbing heat while an exothermic reaction would be exerting heat. All of the answers except D exert heat. Mixing the Epsom salt into water would be absorbing heat.

The answer is D.) mixing Epsom salt in water

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yaroslaw [1]

I need details to solve for you

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3 years ago
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A calorimeter measures the Choose... involved in reactions or other processes by measuring the Choose... of the materials Choose
yuradex [85]

Answer:

heat; temperature; surrounding; insulated.

Explanation:

A calorimeter can be defined as a scientific instrument (device) that is designed and developed for measurement of the heat involved in chemical reactions or other processes, especially by taking the measurement of the temperature of the materials surrounding the process.

Basically, a calorimeter is insulated using materials with a very high level of resistivity, so as to prevent heat transfer to the outside of the device (calorimeter).

Some of the components that make up a simple calorimeter are; thermometer, an interior styrofoam cup, an exterior styrofoam cup, cover, etc.

Additionally, a calorie refers to the amount of heat required to raise the temperature of a gram of water by one degree Celsius (°C)

3 0
3 years ago
How do cells get ATP, the energy currency that does work in living things?
luda_lava [24]
How do cells get ATP through Cellular Respiration.
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3 years ago
I need help on this question
Deffense [45]
B. I’m sorry if I’m wrong ! Wasn’t sure about this question .
5 0
3 years ago
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The ionization constant for water (kw) is 9.311 × 10−14 at 60 °c. calculate [h3o+], [oh−], ph, and poh for pure water at 60 °c.
Sonbull [250]

As,

Kw = [H+] [OH-]

For water, [H+] = [OH-]

Therefore we can write

Kw = [H+]²

9.311 × 10-14 = [H+]²

[H+] = 3.04 × 10-7 = [OH-]

Ph = - log [H+]

= - log ( 3.04 × 10-7)

= 6.52

Thus, Ph = PoH = 6.52

5 0
3 years ago
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