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Sati [7]
3 years ago
8

How does the law of conservation of mass apply to chemical changes?

Physics
2 answers:
Paha777 [63]3 years ago
8 0
Matter cannot be created or destroyed, all of the atoms that are present in the reactants must show up as products
Zielflug [23.3K]3 years ago
5 0

Answer:

The Law of Conservation of Mass states that matter cannot be created nor destroyed. It can only be transformed from one state or substance to another. This means that this law applies to both physical and chemical changes. In physical changes, the substance before and after the phase change still has the same mass.

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Shkiper50 [21]

Answer : The correct option is, (C) 17 m/s

Explanation :

Formula used :

K.E=\frac{1}{2}mv^2

where,

K.E = kinetic energy = 6.8 J

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v = velocity

Now put all the given values in the above formula, we get:

K.E=\frac{1}{2}mv^2

6.8J=\frac{1}{2}\times 0.046kg\times v^2

6.8kg.m^2/s^2=\frac{1}{2}\times 0.046kg\times v^2

v=17.19m/s\approx 17m/s

Therefore, the ball's velocity be as it leaves the cannon is, 17 m/s

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likoan [24]
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Stells [14]

Answer:

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Explanation:

When a gas or a liquid is heated, hot areas of the material flow and mix with the cool areas. ... Convection transfers heat over a distance faster than conduction. But ultimately conduction must transfer the heat from the gas to the other object, though molecular contact.

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How much work must be done on a 20-kg go-cart to increase its speed from 5 m/s to 10 m/s?
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b 250 j

hope  this helps                            

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Read 2 more answers
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