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
natka813 [3]
3 years ago
10

Question 1 of 7

Chemistry
2 answers:
Nata [24]3 years ago
8 0

Answer:

b

Explanation:

nlexa [21]3 years ago
3 0

Answer:

Explanation:B ice melting is a phiyscal change and the mass of the substance remains the same

You might be interested in
What is the density of a liquid if it's volume is 125 mL and it's mass is 50g?
masha68 [24]

Answer:

0.4g/ml

Explanation:

density= mass/volume

density=50g/125ml

density=0.4g/ml

6 0
3 years ago
PLEASE HELP ME ON THIS QUESTION
Brilliant_brown [7]
He call me big purr
4 0
3 years ago
Which one of the following statements about mixtures is correct [2] [3] The different substances in a mixture are always in a de
aivan3 [116]

Answer: Option (4) is the correct answer.

Explanation:

A mixture is defined as a substance that contains two or more different substance that are physically mixed with each other.

If solute particles are evenly distributed in a solvent then it is known as a homogeneous mixture.

For example, salt dissolved in water is a homogeneous mixture.

If solute particles are unevenly distributed into the solvent then it is known as a heterogeneous mixture.

For example, sand in water is a heterogeneous mixture.

Thus, we can conclude that the statement a mixture must contain at least two different substances, is correct about mixtures.

4 0
3 years ago
For the reaction below, initially the partial pressure of all 3 gases is 1.0atm. . 2NH3(g)--> N2(g) + 3H2(g) K, 0.83 1. When
erma4kov [3.2K]

Answer:

The reaction would shift toward the reactants

When the reaction reach equilibrium the partial pressure of NH3 will be greater than 1atm

Explanation:

For the reaction:

2NH₃(g) ⇄ N₂(g) + 3H₂(g)

Where K is defined as:

K = \frac{P_{N_{2}}*P_{H_2}^3}{P_{NH_3}^2} = 0.83

As initial pressures of all 3 gases is 1.0atm, reaction quotient, Q, is:

Q = \frac{1atm*{1atm}^3}{1atm^2} = 1

As Q > K, <em>the reaction will produce more NH₃ until Q = K consuming N₂ and H₂.</em>

Thus, there are true:

<h3>The reaction would shift toward the reactants</h3><h3>When the reaction reach equilibrium the partial pressure of NH3 will be greater than 1atm</h3>

<em />

4 0
3 years ago
What mass of Cl2, in grams is contained in a 10.0L tank at 27oC and 3.50 atm pressure ? a. 1.42 grams b. 142 grams c. 1.01 kg d.
Evgen [1.6K]

Answer:

the correct answer is A

Explanation:

8 0
3 years ago
Other questions:
  • Which element would you expect to behave the most like carbon (C)?
    8·2 answers
  • Which of the following are considered pure substances?
    7·2 answers
  • Which statement is true for the given reaction? Na2SO4(aq) + Mg(s) →
    14·2 answers
  • Determine the method to separate a mixture of ground glass and salt in order to have a pile of ground glass and another pile of
    7·1 answer
  • Which set of data would be best illustrated with a graph bar?
    15·1 answer
  • Write the reaction rate expressions for the<br> following reactions?<br> 2H2+O2_____2H2O
    14·1 answer
  • PLEASE HELP ME ASAP PLEASE!!!
    15·1 answer
  • HCHO2 + NaOH = NaCHO2 + H2O complete ionic
    11·1 answer
  • What is the role of carbon dioxide in photosynthesis
    8·1 answer
  • HELP please. Only if your POSITIVE
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!