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
Minchanka [31]
4 years ago
12

Which property of a substance is not altered by a physical change?

Chemistry
1 answer:
antiseptic1488 [7]4 years ago
3 0
C. Composition

is the answer
You might be interested in
Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills a 500.
patriot [66]

Explanation:

Chemical reaction equation for the give decomposition of NH_{3} is as follows:.

          2NH_{3}(g) \rightleftharpoons N_{2}(g) + 3H_{2}(g)

And, initially only NH_{3} is present.

The given data is as follows.

  P_{NH_{3}} = 2.3 atm at equilibrium

   P_{H_{2}} = 3 \times P_{N_{2}} = 0.69 atm

Therefore,

          P_{N_{2}} = \frac{0.69 atm}{3}

                        = 0.23 aatm

So, P_{NH_{3}} = 2.3 - 2(0.23)

                       = 1.84 atm

Now, expression for K_{p} will be as follows.

         K_{p} = \frac{(P_{N_{2}})(P^{3}_{H_{2}})}{(P^{2}_{NH_{3}})}

           K_{p} = \frac{(0.23) \times (0.69)^{3}}{(1.84)^{2}}

                      = \frac{0.23 \times 0.33}{3.39}

                     = 0.0224

or,           K_{p} = 2.2 \times 10^{-2}

Thus, we can conclude that  the pressure equilibrium constant for the decomposition of ammonia at the final temperature of the mixture is 2.2 \times 10^{-2}.

6 0
4 years ago
Describe how a positive result for the Baeyer Test will look. What is being oxidized? What is being reduced?
Ksivusya [100]

Answer:

This reaction is sometimes referred to as the Baeyer test. Because potassium permanganate, which is purple, is reduced to manganese dioxide, which is a brown precipitate, any water‐soluble compound that produces this color change when added to cold potassium permanganate must possess double or triple bonds.

Explanation:

<h2><em>I</em><em> </em><em>HOPE</em><em> </em><em>IT'S</em><em> </em><em>HELP</em><em> </em></h2>
5 0
3 years ago
What are hydrated substances
Keith_Richards [23]

Answer:

Glauber's salt

washing soda

5 0
3 years ago
Name 3 common accelerants used in arson
Makovka662 [10]

Answer:

Common ones are Gasoline, Diesel fuel, and Kerosene.

Explanation:

Many accelerants are hydrocarbon-based fuels, sometimes referred to as petroleum distillates: gasoline, diesel fuel, kerosene, turpentine, butane, and various other flammable solvents. These accelerants are also known as ignitable liquids. Ignitable liquids can leave behind tell-tale marks in the fire debris.

Hoped this had helped you :)

7 0
4 years ago
Which of the following is a formula for a hydrocarbon? Question 17 options: CH4 CH2O CH3OH HCOOH
wlad13 [49]

Answer:

2nd one

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is a physical property of a substance?
    10·1 answer
  • Al-Qaeda is the name of the group that fought against the Soviet-supported government in Afghanistan.
    11·1 answer
  • The product of nuclear ___ is several nuclei
    13·1 answer
  • Help please!
    11·1 answer
  • If an atom has 7 valence electrons, what will its charge be when it becomes an ion?
    9·1 answer
  • In order for a cell to continue being efficient at exchanging materials, what must it do to maintain its surface-to-volume ratio
    7·1 answer
  • Mosses and liverworts are examples of ___________.
    12·1 answer
  • List three common states of matter and give definition
    5·1 answer
  • A ____ taste is a characteristic property of all acids in aqueous solution.​
    6·1 answer
  • What is the empirical formula for a compound if 300. 00 g of it is known to contain 82. 46224 g of molybdenum, 45. 741 g of chlo
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!