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
solniwko [45]
4 years ago
14

Why can't chemical changes be undone? Because of the chemical properties. Because Mark is an idiot. Because they need energy. Be

cause new substances are formed.
Chemistry
1 answer:
Volgvan4 years ago
8 0

Answer: Because new substances are formed.

Explanation: A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.  Once a chemical change occurs it cannot be undone due to the change in chemical identity.  The creation of a new substance is not reversible.  

You might be interested in
A substance containing atoms of two or more different elements chemically bonded together is called what
fredd [130]
I believe the answer is cheamical.

Hope this helps
8 0
3 years ago
Is the movement of plates to form land masses is called plate tectonics
joja [24]
Yes the movement of land forms is called the movment of plate tectonics. :) plz thnk me
4 0
4 years ago
The following is a procedure that was theoretically performed by a student. Read through the procedure and answer the questions
yKpoI14uk [10]

Answer:

CaCl2 (aq) + K2CO3(aq) ---------> CaCO3(s) + 2KCl(aq)

Explanation:

We have the reactants as calcium chloride and potassium carbonate. Recall that we are expecting that the reaction will yield a precipitate. We must keep that in mind as we seek to write its balanced chemical reaction equation.

So we now have;

CaCl2 (aq) + K2CO3(aq) ---------> CaCO3(s) + 2KCl(aq)

Recall that the rule of balancing chemical reaction equation states that the number of atoms of each element on the right side of the reaction equation must be the same as the number of atoms of the same element on the left hand side of the reaction equation.

6 0
3 years ago
2. Using the following data, calculate the average atomic mass of magnesium (give your answer to the nearest
Savatey [412]

Answer: 24.309amu

Explanation:

4 0
3 years ago
Why is it permissible to use a wet bottle when first obtaining your kmno4 solution?
Murrr4er [49]
For the answer to the question above, well presumably because the exact concentration of the composition KMnO4 solution doesn't matter. <span>If the concentration of the KMnO4 solution is important (usually in titrations etc.) then it is not allowed to use a wet bottle. The water in the bottle will dilute the KMnO4 solution and change the concentration of the said compound.</span>


5 0
3 years ago
Other questions:
  • Maia says that both lines on this position vs time graph show acceleration. Is she correct? Why or why not? help me please i nee
    14·2 answers
  • What is a chemical change?
    10·1 answer
  • Which is the second step in the dissolving process?
    13·2 answers
  • Please help
    14·2 answers
  • Predict whether a reaction occurs, and write balanced complete and net ionic equations:(a) Iron (III) chloride (aq) + cesium pho
    12·1 answer
  • How many mole are there in 7.2 x 1023 formula units of H2S04?​
    11·1 answer
  • What is this called? it might be sideways but it show look like a Y
    13·1 answer
  • Lol whats the answer to the question tho lol
    6·1 answer
  • The ideal gas law only approximates the behaviour of real gases. The conditions
    5·1 answer
  • Beta particles are identical to Multiple Choice protons. helium atoms. hydrogen atoms. helium nuclei.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!