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
Ede4ka [16]
2 years ago
14

If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes it is called a

Chemistry
1 answer:
vladimir1956 [14]2 years ago
3 0

Answer:

Physical change

Explanation:

Physical change -

It is the type of reversible change , where there is change in the state of the matter , is referred to as a physical change .

There is no chemical process involved during state change , i.e. , no new substance is formed .

Hence , from the given statement of the question, the correct term is physical change.

You might be interested in
Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KClO3(s)2KCl(s) + 3O2(g) The prod
Ipatiy [6.2K]

Answer:

The number of moles of KClO₃ reacted was 0,15 mol

Explanation:

For the reaction:

2KClO₃(s) → 2KCl(s) + 2O₂(g)

The only gas product is O₂.

Total pressure is the sum of vapor pressure of water with O₂ gas formed. Thus, pressure of O₂ is:

749mmHg - 23,8mmHg = 725,2mmHg

Using gas law:

PV/RT = n

Where:

P is pressure (725,2mmHg ≡ <em>0,9542atm</em>)

V is volume (<em>5,76L</em>)

R is gas constant (<em>0,082 atmL/molK</em>)

And T is temperature (25°C ≡ <em>298,15K</em>)

Replacing, number of moles of O₂ are <em>0,2248 moles</em>

As 2 moles of KClO₃ react with 3 moles of O₂ the moles of KClO₃ that reacted was:

0,2248 mol O₂×\frac{2 mol KClO_{3}}{3 mol O_{2}} = <em>0,15 mol of KClO₃</em>

I hope it helps!

8 0
3 years ago
Which functional group is found in salicylic acid but not in aspirin?
velikii [3]

Answer: 1. Alcohol 2. Ester

Explanation:

Right on edge.

3 0
2 years ago
Read 2 more answers
How many moles of co2 must enter the calvin cycle for the synthesis of one mole of glucose?
11111nata11111 [884]

Answer:3 moles

Explanation:

For every three molecules of CO2 that enters the Calvin cycle, one molecule of the three carbon glyceraldehyde 3-phosphate (G3P) is produced. Two molecules of G-3-P are required to produce one molecule of glucose. Therefore, the Calvin cycle needs to make a total of 6 turns to produce two molecules of G-3-P.

7 0
3 years ago
Matter in the ____state completely fills the volume of its container
balu736 [363]

Answer:

Gas state

Explanation:

Gas particles spread out to fill a container evenly, unlike solids and liquids.

5 0
3 years ago
Read 2 more answers
Help please asap will mark brainliest!! My time is running out.
sukhopar [10]

Answer:

I dont know sorry.

Explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • How many moles of hydrogen gas are produced when 0.066 mole of sodium is completely reacted?
    14·2 answers
  • List the four groups attached to the central carbon of an amino acid.
    9·2 answers
  • A thermometer reads a temperature to be 38.0 °C. What is the temperature in
    10·1 answer
  • A company employs several high school students in its food-packaging factory. All the students are below 17 years of age. Which
    6·2 answers
  • It’s due in 5 minutes pls help!!..
    10·1 answer
  • A 150 j of energy is added to a system that does 50 j of work is done. By how much wiull the internal energy of the system be ra
    7·2 answers
  • What is the molar mass of HBR
    6·1 answer
  • Balance this chemical equation. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the coeffici
    14·1 answer
  • 9. How does the electron configuration of an ion of
    14·1 answer
  • Calculate the molarity when 28.91 grams of nacl is dissolved in 352 ml of water
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!