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
tester [92]
3 years ago
10

Which of these represents a chemical change?

Chemistry
2 answers:
Art [367]3 years ago
8 0
Option C. A compound being separated into 2 elements represents a chemical change.
Solnce55 [7]3 years ago
7 0

Answer : The correct option is, (C) a compound being separated into two elements

Explanation :

Chemical change : It is a change where changes occurs in the chemical composition and thus resulting in the formation of new compound or substance. It is an irreversible reaction.

The indication of chemical changes are :

Formation of gas bubbles.

Formation of precipitate.

Change in color.

Change in temperature.

Change in volume.

Change in smell or taste.

Evolution of heat, light and sound.

Physical change : It is a change in which shape and size of a substance changes. In this there is no change in the chemical composition of the substance and no new substance is forming. It is a reversible reaction.

The mixtures are physical combinations.

The indication of chemical changes are :

Change in shape.

Change in form.

Change in size.

Change in phase.

As per question, the option A, B and C is a physical change and option C is a chemical change.

Option C is a chemical change because when a compound being separated into two elements then their chemical compositions are changes and thus resulting in the formation of new compound or substance.

Hence, the option C represents a chemical change.

You might be interested in
Which is a FALSE statement about compounds?
rewona [7]

Answer:  D. Made of only one kind of atom

Explanation:A compound forms whenever two or more atoms form chemical bonds with each other.

3 0
3 years ago
Read 2 more answers
Balance N2 + H2 —NH3 what type of reaction
AnnyKZ [126]
3! You have to ensure balance of all the different elements.
5 0
3 years ago
PLSS HELP
-Dominant- [34]
Atoms (Sodium and Fluorine)
8 0
3 years ago
Read 2 more answers
What is a insect and name one.
lidiya [134]

Answer:

a ladybug I hope this helps you

7 0
1 year ago
Read 2 more answers
If the rate law for a reaction A → P is rate = 3.37x10-3 M^-1 min-1 [A]^2 and the initial concentration of a is 0.122 M, calcula
DedPeter [7]

Rate = 3.37x10-3 M^-1 min-1 [A]^2 and the initial concentration of a is 0.122M.

A rate law indicates the rate of a chemical response depends on reactant concentration. For a response inclusive of the price regulation commonly has the form rate = ok[A]ⁿ, in which okay is a proportionality constant known as the fee regular and n is the order.

The charge of a chemical response is, perhaps, its maximum crucial asset because it dictates whether or not a reaction can arise all throughout an entire life. knowing the charge regulation, an expression concerning the price to the concentrations of reactants can assist a chemist to modify the response conditions to get an extra suitable rate.

half-life is the time taken for the radioactivity of a substance to fall to 1/2 its authentic cost whereas implies existence is the common life of all the nuclei of a particular risky atomic species.

Learn more about rate law here:-brainly.com/question/7694417

#SPJ4

3 0
2 years ago
Other questions:
  • The temperature of the diatomic hydrogen gas sample is increased to 100∘c. the root-mean-square speed vrms for diatomic hydrogen
    10·1 answer
  • Which of the following is an alkali metal?
    12·2 answers
  • Use bond energies to determine δhrxn for the reaction between ethanol and hydrogen chloride. ch3ch2oh(g)+hcl(g)âch3ch2cl(g)+h2o
    10·1 answer
  • Ammonia is a compound of hydrogen and nitrogen that dissolves easily in water. can you conclude that the hydrogen nitrogen disso
    12·1 answer
  • An object is placed at 0 on a number line. It moves 3 units to the right, then 4 units to the left, and then 6 units to the righ
    7·2 answers
  • Compounds retain most of the properties of their constituent elements.<br> True<br> False
    5·2 answers
  • Consider the following mechanism: (1) ClO−(aq) + H2O(l) ⇌ HClO(aq) + OH−(aq) [fast] (2) I−(aq) + HClO(aq) → HIO(aq) + Cl−(aq) [s
    15·1 answer
  • The freezing point of a solution the freezing point of the pure solvent
    5·2 answers
  • Brainliest!!!!!!Parking lots and other man made ground coverings may increase erosion around there edges
    13·1 answer
  • What is a better indicator in the titration of HCl with Na2CO3, methyl orange or methyl red, and why​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!