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
mezya [45]
3 years ago
8

What is NOT a sign of chemical change?

Chemistry
1 answer:
damaskus [11]3 years ago
6 0

Answer:

d

Explanation:

You might be interested in
Consider the reaction. Upper H subscript 2 upper o (g) plus upper C l subscript 2 upper O (g) double-headed arrow 2 upper H uppe
dedylja [7]

Answer:

Equilibrium constant for the reaction is 0.0892

Explanation:

This is the reaction of equilibrium

         H₂O      +     Cl₂O     ⇄    2HClO

Eq   0.077M       0.077M           0.023M

Let's make the expression for Kc

Kc = [HClO]² / [Cl₂O] . [H₂O]

Kc= 0.023² / 0.077 . 0.077 = 0.0892

5 0
3 years ago
Read 2 more answers
Which element of the third period had the highest first ionization energy?
gavmur [86]

Answer:

C.) Argon

Explanation:

This is because ionisation energy increases as we move from left to right in a period. Argon presents in the right most column and Argon is a novel gas and has 8 electrons in outermost orbital. So, it is highly stable. I hope I helped! ^-^

4 0
3 years ago
A statement that best describes a solution
PIT_PIT [208]
A solution is usualy a diluted liquid that cleans for example bleach solution.
6 0
3 years ago
When 11.12 g of neon is combined in a 100 L container at 80oC with 9.59 g of argon, what is the mole fraction of argon?
PolarNik [594]
The correct answer for the question that is being presented above is this one: "<span>0.3."

Here it is how to solve.
M</span><span>olecular mass of Ar = 40
</span><span>Molecular mass of Ne = 20
</span><span>Number of moles of Ar = 9.59/40 = 0.239
</span><span>Number of moles of Ne = 11.12/20= 0.556
</span><span>Mole fraction of argon = 0.239/ ( 0.239 + 0.556) = 0.3</span><span>
</span>
3 0
4 years ago
Which one of Newton's Laws fits this statement: More mass means more force needed to accelerate?
ivolga24 [154]

Answer:

Newton's Second Law

Explanation:

Newton's second law basically states that the acceleration of a body which is produced by a net force is directly proportional to the magnitude of net force applied in the same direction.

This tells us that

     F   is directly proportional to a

⇒ F= ma

So we can also state from the above equation, that when we have more mass, we need more net force to accelerate it. Here, we are keeping the acceleration constant so we can surely say that force and mass varies directly.

Therefore, we have made good use of Newton's Second Law of motion to arrive at this conclusion.

4 0
4 years ago
Other questions:
  • If you had a 5 gram sample of lawrencium how much would still remain in 30 minutes
    6·1 answer
  • What is needed in order to determine a mole ratio?
    14·1 answer
  • Valid experiment for does water and oil mix
    5·1 answer
  • How do knowing the half-life of carbon 14 can tell scientists the absolute age of a rock sample
    5·1 answer
  • Match the type of atomic bond with the correct definition.Ionic BondMatch the type of atomic bond with the correct definition.Io
    5·1 answer
  • IS IT B, C, OR D <br> PLZ HELP AND DONT BE WRONG
    9·2 answers
  • Select the correct answer.
    13·1 answer
  • When physical properties are measured their identity will be changed. True or False​
    14·1 answer
  • Mount Rushmore national memory in South Dakota was carved out of grantie that formed from cooled magma what type of rock matches
    14·1 answer
  • Help me pls I will mark you as brain
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!