1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Doss [256]
3 years ago
9

Help on chem! Will give 30pts!

Chemistry
1 answer:
Irina-Kira [14]3 years ago
5 0

Here, substitution reaction is undergoing and the energy levels of each reaction phase is marked in graph. Its an exothermic reaction.

<h3><u>Explanation:</u></h3>

The substitution reaction is a type of reaction where a part of a molecule is substituted by another molecule to produce 2 products.

Here in the graph, in phase A we can see two molecules are coming in a reaction and they are at a particular energy level as marked. In phase B, we can see that the molecules are undergoing the substitution reaction via SN² reaction where the energy level is higher than the original energy level because of the activation energy. The difference between the energy levels is called the activation energy which is marked as D.

The final phase is the final energy levels of these 2 products where the energy level is much lower than original energy level. So the energy is lost through the reaction as heat. So the reaction is exothermic.

You might be interested in
8. Bring the balloon in contact with the wall. What happens to the charges in the wall?
Ne4ueva [31]

When the charged balloon is brought near the wall, it repels some of the negatively charged electrons in that part of the wall. Therefore, that part of the wall is left repelled.

<u>Explanation</u>:  

  • Balloons don't stick to walls. However, if you rub the balloon on an appropriate piece of material such as clothing or a wall, electrons are pulled from the other material to the balloon.
  • The balloon now as more electrons than normal and therefore has an overall negative charge. Two balloons like this will repel each other.
  • The other material now has an overall positive charge. Because opposite charges attract, the balloon will now appear to stick to the other material. If you didn't rub the balloon first, it's charge would be neutral and it wouldn't stick to the wall.
7 0
3 years ago
The kinetic energy within molecules of an object _ when heat is added? Increases decreases or remains the same
kotegsom [21]

The kinetic energy of an object increases when heat is added.

6 0
3 years ago
More pointss hahahahahahahaha
Oksana_A [137]

Answer:

thanks

Explanation:

fjnrjbn

7 0
3 years ago
Read 2 more answers
State the location and the total charge of the protons in a Ni-64 atom.
blsea [12.9K]
Location = nucleus , 
and you can see the total charge on the number that written below the substance, which would be 28+ 

hope this helps

6 0
3 years ago
Read 2 more answers
Acids taste<br> a. sweet. <br> c. bitter. <br> b. sour. <br> d. salty
Gnesinka [82]
The answer is (b) for example lemon juice is an acid and it tastes sour.
Hope this helps :).
4 0
3 years ago
Other questions:
  • Hurry will mark brainliest Study this image of lithospheric plates.
    8·2 answers
  • A gas occupies 200 mL at -73°C. To have the same gas occupy 300 mL:Should the temperature be increased or decreased?
    13·1 answer
  • What would happen if carbon -14 gained 1 proton and lost 1 neutron?
    11·1 answer
  • What is scientific meaning for emerge?
    11·2 answers
  • Please help me with some extra details please
    13·1 answer
  • The digestion of food in the body is an example of ____________ reaction
    11·1 answer
  • *Will mark the BRAINLIEST*
    13·1 answer
  • Give the name of one or more polysaccharides that matches each of the following descriptions:
    15·1 answer
  • In a 1.0×10−6 M solution of KOH(aq) at 25 °C, arrange the species by their relative molar amounts in solution.
    6·1 answer
  • I need help with my work
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!