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shutvik [7]
2 years ago
5

Which of the following is NOT an indication that a chemical reaction took place?

Physics
1 answer:
Aleksandr-060686 [28]2 years ago
7 0
The change of shapes is a physical reaction
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A sample of a gas has a volume of 639 cm3 when the pressure is 75.9 kPa. What is the volume of the gas when the pressure is incr
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388 cm^3

Explanation:

For this problem, we can use Boyle's law, which states that for a gas at constant temperature, the product between pressure and volume remains constant:

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which can also be rewritten as

p_1 V_1 = p_2 V_2

In our case, we have:

p_1 = 75.9 kPa is the initial pressure

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A force can give a certain mass a certain acceleration. if i double the force and double the mass, the acceleration of this obje
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