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Grace [21]
2 years ago
9

PLEASE ANSWERRRRRRRRRRRRR

Chemistry
2 answers:
san4es73 [151]2 years ago
8 0

Answer:

A

Explanation:

There is no medium for the sound to travel through.

Arlecino [84]2 years ago
7 0

Answer:

Sound cannot travel through vacuum

Explanation:

I <em>COULD</em> be wrong, so don't absolutely count on me.

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Is hardness an intensive or extensive physical property?.
Ierofanga [76]
It is an intensive property
7 0
2 years ago
How does burning fossil fuels cause an increase of carbon in the air?
mash [69]

Answer:

Because burning a non-renewable resource that is not good for the atmosphere, will always cause some kind of chemical reaction to happen.

Examples of these reactions are...

  1. Acid rain, a very dangerous disaster.
  2. Global warming.
  3. Carbon increases.

8 0
2 years ago
Read 2 more answers
What is the molarity of a solution that contains 14 moles of solute and 2 liters of solution?
Nata [24]

Answer:

  7 M

Explanation:

The molarity is defined as "moles per liter." Here, it is ...

  (14 moles)/(2 liters) = 7 moles/liter = 7 M

6 0
3 years ago
What happens to the chemical identity of a substance during a physical change?
klio [65]
Nothing happens because a physical change only changes the appearance of the substance, whereas a chemical change transforms the substance into something completely different.
i.e. (chemical change) wood + fire = ash
(physical change) wood + axe = smaller pieces of wood
5 0
3 years ago
The volume of carbon gas at 5.0 ATM was measured to be 363 ml. What will the pressure be if the volume is change to .00020 ml?
aleksley [76]

Answer:

The answer to your question is P2 = 9075000 atm

Explanation:

Data

Pressure 1 = P1 = 5 atm

Volume 1 = V1 = 363 ml

Pressure 2 = P2 = ?

Volume 2 = 0.0002 ml

Process

To solve this problem use Boyle's law

                 P1V1 = P2V2

-Solve for P2

                 P2 = P1V1/V2

-Substitution

                  P2 = (5 x 363) / 0.0002

-Simplification

                  P2 = 1815 / 0.0002

-Result

                 P2 = 9075000 atm

5 0
3 years ago
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