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
zysi [14]
2 years ago
8

What is the law of Conservation of mass ?​

Chemistry
1 answer:
Ahat [919]2 years ago
5 0
The Law of Conservation of Mass states that energy can neither be created nor destroyed in a chemical reaction.
You might be interested in
What are non examples of tissue? Help please
antiseptic1488 [7]

Epithelial

I know just one

7 0
2 years ago
You have 4 moles of oxygen gas in a flask. 4 moles of helium gas is added. What happens to the total pressure of the gases in th
ASHA 777 [7]

Answer: The correct option is (c). The total pressure doubles.

Solution:

Initially,  only 4 moles of oxygen gas were present in the flask.

p_{O_2}=Tp_1\times X_{O_2}  (X_{O_2}=\frac{4}{4}) ( according to Dalton's law of partial pressure)

p_{O_2}=Tp_1\times 1=Tp_1....(1)

Tp_1= Total pressure when only oxygen gas was present.

Final total pressure when 4 moles of helium gas were added:

X'_{O_2}=\frac{4}{8}=\farc{1}{2},X_{He}=\frac{4}{8}=\frac{1}{2}

partial pressure of oxygen in the mixture :

Since, the number of moles of oxygen remains the same, the partial pressure of oxygen will also remain the same in the mixture.

p_{O_2}=Tp_2\times X'_{O_2}=Tp_2\times \frac{1}{2}

Tp_2= Total pressure of the mixture.

from (1)

Tp_1=Tp_2\times X'_{O_2}=Tp_2\times \frac{1}{2}

On rearranging, we get:

Tp_2=2\times Tp_1

The new total pressure will be twice of initial total pressure.

7 0
3 years ago
Give an example of each type of intermolecular forces (dispersion,
Andrei [34K]
I’m not too sure I hope someone answers for you
8 0
2 years ago
Select which of the following are used to determine the age of the Earth. Select 3.
saveliy_v [14]

Meteorites discovered on earth

7 0
2 years ago
2CO + O2 → 2002
Reika [66]

Answer:

B: Increasing the volume inside the reaction chamber

Explanation:

5 0
3 years ago
Other questions:
  • The alkali metals react with the halogens to form ionic metal halides. what mass of potassium chloride forms when 5.11 l of chlo
    11·1 answer
  • Which one of the following types of rock would weather the fastest
    13·1 answer
  • Which common mineral is most resistant to both chemical and mechanical weathering?
    11·1 answer
  • A mammoth skeleton has a carbon-14 decay rate of 0.49 disintegrations per minute per gram of carbon (0.49 dis/min⋅gC ). You may
    10·1 answer
  • - What is the element symbol for californium?
    5·1 answer
  • Which cell structure is correctly paired with its primary function?
    11·1 answer
  • A chemist adds of a iron(III) bromide solution to a reaction flask. Calculate the mass in kilograms of iron(III) bromide the che
    6·1 answer
  • The pH of 0.10 M solution of an acid is 6. What is the percentage ionization of the acid?
    11·1 answer
  • What mass of sodium hydroxide is needed to make 12.5 L of a 0.150M solution?
    8·1 answer
  • if 26.8g of copper (ll) chloride are dissolved in sufficient water to make 4.00 L of solution, what is the molarity of the solut
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!