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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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A Solution is a mixture of two or more substances_____
Ipatiy [6.2K]

Answer:

In the same phase

Explanation:

Because when you make a solution you have to keep them in the same phase or you will oof.

4 0
3 years ago
WILL GIVE BRAINLIEST
erastova [34]

Answer:

It is a force acting on the object.

Explanation:

The answer option which is true about the weight of an object is: C. It is a force acting on the object.

Weight can be defined as the force acting on a physical body or an object as a result of gravity. Also, the weight of an object is measured in Newton.

Mathematically, the weight of an object is given by the formula;

Where;

m is the mass of the object.

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4 0
2 years ago
What effect does temperature have on reaction rate?
barxatty [35]
The answer for this multiple choice question is C



7 0
2 years ago
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mixas84 [53]
Sulfur.
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7 0
3 years ago
Which half-reaction correctly represents oxidation?
Leokris [45]

Answer: Mg\rightarrow Mg^{2+}+2e^- represents oxidation.

Explanation:

Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

Example: Mg\rightarrow Mg^{2+}+2e^-

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

Example: Mg^{2+}+2e^-\rightarrow Mg

Mg\rightarrow Mg^{2+}+2e^- represents oxidation.

4 0
3 years ago
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