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melamori03 [73]
3 years ago
9

If a 130-kg car is traveling at a velocity of 23 m/s, what is the kinetic energy of the car?​

Chemistry
2 answers:
Iteru [2.4K]3 years ago
5 0

Answer:

1/2*(23 ^2)*130=34385

AnnZ [28]3 years ago
3 0
KE = 1/2 * m * v^2
KE = 1/2 * 130 * 23^2
KE = 34385J
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A. Na₂SO₄ and HCl

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Like dissolves like simply means that molecules of substances having similar chemical properties dissolve in each other

Explanation:

A. Ionic substances like Na₂SO₄ are composed of charged particles called ions. These ions are either positively charged or negatively charged, therefore, they are attracted to substances of opposite charges. Also, polar molecules like HCl contains two oppositely charged ends. A polar solvent consists of molecules with two oppositely charged ends, therefore, ionic substances as well polar substances dissolve in them according to the concept of like dissolves like.

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What is ionisation enthalpy?​
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