CHEMISTRY HIGH SCHOOL

The kinetic theory states that the higher the temperature, the faster the...

Answers

Answer 1
Answer:

The properties of different states of matter is explained by the kinetic theory of matter. The kinetic theory states that the higher the temperature, the faster the movement of the molecules.

What is kinetic theory?

The kinetic theory of matter states that the matter is made up of the particles which are always in motion. All the particles should have energy and the energy of the particle is determined by the temperature which effect the substance that exists in solid, liquid or gas.

The average speed and kinetic energy of the gas molecules increases with the increase in temperature. The higher speed of the molecules causes the more forceful and frequent collisions to occur. The random motion of the molecules is caused by the increase in temperature.

The actual average speed of the particles depends on their mass as well as the temperature. The heavier particles move slowly and the lighter ones move faster.

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Answer 2
Answer: The kinetic theory states that the higher the temperature, the faster the movement of particles and atoms. It is mainly applied to gases and states that the higher the temperature, the faster the particles of the gas move, which leads to greater collision of gas particles and greater pressure in a closed system.

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What are liquid crude oil and petroleum made from? A. small marine organisms
B. small land-based organisms
C. compressed rock and sediment
D. decomposing inorganic matter

Answers

Answer: Small marine organisms. 

Liquid crude oil and petroleum are made from small marine organisms.
It is a a small marine organisms

What is the half-life of sodium-25 if 1.00 gram of a 16.00-gram sample of sodium-25 remains unchanged after 237 seconds?(1) 47.4 s (3) 79.0 s
(2) 59.3 s (4) 118 s

Answers

Given,
1 gram remain out of 16 grams after 237 seconds.

So, 
1g -> 2g -> 4g -> 8g -> 16g
So, 4 half lives have taken palce.

So,
we divide 237 by 4 and we get our answer.

So,
234 / 4 = 59.25 ≈ 59.3

So, the answer is (2) 59.3 seconds

Final answer:

The half-life of sodium-25, when 1.00 gram of a 16.00-gram sample remains unchanged after 237 seconds, is approximately 59.3 seconds. This solution was found by calculating the number of times the sample halved and dividing the total time by this figure.

Explanation:

The question asks for the half-life of sodium-25 if 1.00 gram of a 16.00-gram sample remains unchanged after 237 seconds. In nuclear physics and nuclear chemistry, the half-life is the amount of time it takes for half of a sample of a radioactive substance to undergo decay.

Given that sodium-25 has gone from 16 grams to 1 gram, we can see that 1/16th of the original amount is left after 237 seconds. In other words, the quantity of sodium-25 has halved approximately 4 times. Therefore, the half-life will be the total time divided by the number of half-lives.

By dividing 237 seconds by 4, we get 59.25 seconds. So, the closest accurate answer is (2) 59.3s.

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What is the chemical symbol for gold?

Answers

The chemical symbol for gold is AU

Answer:

au

Explanation:

on the periodic table golds chmeical symbol is au

The standard enthalpy of ________ is the enthalpy change of reaction to form one mole of a substance from its elements under standard conditions of temperature and pressure.

Answers

Formation.
The standard enthalpy of formation occurs under the standard conditions of 298k and 1bar.

Morant Bay is 33 km south of Port Antonio a pigeon can fly at a speed of 1.2 m s what is the displacement of morant bay from Port Antonio​

Answers

Answer:

33km due south

Explanation:

Morant Bay is 33km south of Port Antonio;

  Problem: displacement of Morant bay from Port Antonio;

Displacement is a vector quantity. It is the length of path between two position and the direction inclusive.

So, it has magnitude and must be specified with a direction.

  • Therefore, the displacement of Morant Bay from Port Antonio is 33km due south.

Using the following phase diagram, which line segment describes the interface between solid and vapor?A-B

B-C

A-B-C

B-D

Answers

In the given phase diagram, the line segment that describes the interface between solid and vapor is A-B. The rest of the choices do not answer teh question above
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Ice (H2O) melting at 273 K and 1 atm has = 6.01 kJ/mol and = 6.01 kJ/mol while water vaporizing under the same conditions has = 37.6 kJ/mol and = 40.7 kJ/mol. Why is there such a large difference between and , but not for and ?
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