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
dezoksy [38]
3 years ago
11

What is true about water that is freezing? A) The change cannot be undone. B) It is going through a physical change. C) It is go

ing through a chemical change. D) The chemical makeup of the water will not remain the same.
Chemistry
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer: B) It is going through a physical change.

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

Example: Freezing of water

H_2O(l)\rightleftharpoons H_2O(s)

The solid water can be changed to liquid by heating or lowering the pressure.

The chemical make up of water remains same.

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Example: Corrosion of iron

Fe\rightarrow Fe^{2+}+2e^-

It can not be reversed.

You might be interested in
Form of energy used to decompose water<br><br> it is a 11 letter word<br> _ _ e _ _ e _ c _ t _
andrew-mc [135]

Answer:

Electrolysis

Explanation:

Electrolysis is a process by which electrical energy is used to produce a chemical change. Perhaps the most familiar example of electrolysis is the decomposition (breakdown) of water into hydrogen and oxygen by means of an electric current. The same process can be used to decompose compounds other than water.

7 0
4 years ago
Read 2 more answers
Which of the following is a physical property of a substance?? A. Combustion B. Corrosion C. Tendency to tarnish D. Solubility
Fofino [41]
A physical property does not change the substance. 

Solubility would be the answer since all of the rest are changing the substance. They all deal with bonds except solubility. 

Answer: D. Solubility

6 0
3 years ago
Read 2 more answers
Organic Chem help please!
Yanka [14]
Organic chemistry is a chemistry subdiscipline involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms. Study of structure includes many physical and chemical methods to determine the chemical composition and the chemical constitution of organic compounds and materials.
3 0
3 years ago
Fill in the blanks with the vocabulary.
tatyana61 [14]
4) speed of light
5) solar panels
6) photon
7) photoelectric effect
8) reflect


I believe this is correct
4 0
3 years ago
Read 2 more answers
Which of the following is NOT a part of Dalton's atomic theory?
MAVERICK [17]

Answer:

option a = Atoms are always in motion.

Explanation:

John Dalton gives atomic theory in 1808. The main postulates are following,

1 = All mater is composed of indivisible  particle called atom.

2 =The atoms of same element are identical, but differ from another element.

3 = The atoms of different elements are combine in fixed proportion and form compound.

4 = Atom can not be created nor destroyed.

5 = Atom is smallest part of an element that take part in chemical reaction.

From above Dalton theory postulates it can be seen that all options are correct except option A.

5 0
4 years ago
Other questions:
  • On the periodic table of elements which group is liquid gas solid and gas in
    15·1 answer
  • The rate of dissolution is affected by all of the following except the A. agitation of solute within the solvent. B. surface are
    11·1 answer
  • Chemical energy is released when molecular bonds are formed.<br> True<br> False
    5·1 answer
  • The reaction of ammonia and hydrogen chloride gas:
    11·1 answer
  • Which air mass has formed immediately north of Antarctica in the image?
    10·2 answers
  • Is frying an egg chemical or physical change
    12·2 answers
  • When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coeffici
    14·1 answer
  • 2 Students were asked to identify the location of elements in the periodic table based on clues
    13·1 answer
  • Give me 10 examples of entropy.​
    13·1 answer
  • The statement “Matter cannot be created or destroyed during a chemical change.” is known as
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!