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Vaselesa [24]
3 years ago
13

#1: Which of the following is an exothermic reaction?

Chemistry
1 answer:
aleksandrvk [35]3 years ago
5 0
<span>An exothermic reaction is one in which heat is released from the reagents into the ambient environment. Perhaps somewhat counterintuitively, condensation is in fact an example of such a reaction. During the process of the gas-to-liquid phase change, water goes from a higher-energy to lower-energy state of matter, and, as such, releases heat into the environment.</span>
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HELP
snow_lady [41]

Explanation:

a chemical reaction that absorbs energy is known to be endothermic since heat is being taken in by the reaction. The value of the transition state would be 150 because you have to subtract the product's enthalpy and the reactant's enthalpy to obtain it. A positive value for the transition state also corroborates that the reaction is endothermic.

5 0
3 years ago
Describe how and why the statue of the Sphinx has changed since it<br>was made.​
Lyrx [107]

Answer:

I don't know if this will help but. The Great Sphinx has suffered from erosion and vandalism. Hatshepsut's stepson was too young to rule at the time of her husband's death, so she just took the job.

8 0
3 years ago
Which structure of the organism work together to carry out all of its life functins?
KiRa [710]
Each cell does not perform every life function on its own. Instead, the cells work together to carry out the life functions of the organism.
8 0
3 years ago
Is hardness physical or chemical property
Afina-wow [57]

Answer:

The properties of the Hardness are:

Hardness is a physical property

Hardness is indicative of the strength of chemical bonds between elements.

Diamond can scratch quartz Explanation:

6 0
3 years ago
What is the energy of a 933 nm wave?
vovikov84 [41]

E=hc/l

E=

<span><span>E=<span>(6.626 x 10-34 J s)(3.0 x 108m/s )</span><span>=2.88 x 10-19J</span></span><span>6.90 x 10-7m</span></span>
8 0
3 years ago
Read 2 more answers
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