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arsen [322]
2 years ago
10

which properties change the composition of a substance? A) physical properties B) neither chemical nor physical properties C) ch

emical properties D) Chemical and physical properties​
Physics
1 answer:
svlad2 [7]2 years ago
8 0

Answer:

C) chemical properties is the answer....

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Our modern ideas about government were influenced by many different ideas and traditions. The biggest influence came from their British heritage. (Remember the colonists WERE British until the American Revolution!)

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A ball whose mass is 0.3 kg hits the floor with a speed of 7 m/s and rebounds upward with a speed of 4 m/s. if the ball was in c
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Newton's second law is stated as:
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Two distinct systems have the same amount of stored internal energy. 500 J are added by heat to the first system and 300 J are a
olga_2 [115]

Answer:

The change in the internal energy of the first system is 300 J

The second system will do zero work in order to have the same internal energy.

Explanation:

Given;

heat added to the first system, Q₁ = 500 J

heat added to the second system, Q₂ = 300 J

work done by the first system, W₁ = 200 J

The change in the internal energy of the system is given by the first law of thermodynamics;

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where;

ΔU is the change in internal energy of the system

The change in the internal energy of the first system is calculated as;

ΔU₁ = Q₁ - W₁

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ΔU₁ = = 300 J

The work done by the second system to have the same internal energy with the first.

ΔU₁ = Q₂ - W₂

W₂ = Q₂ - ΔU₁

W₂ = 300 J - 300 J

W₂ = 0

The second system will do zero work in order to have the same internal energy.

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<span>Like Group I, it has one electron on its outer shell. Like group seven, it needs one electron to complete its octet.</span>
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