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Lunna [17]
3 years ago
15

Interpreting Velocity vs. Time Graphs

Chemistry
1 answer:
NemiM [27]3 years ago
4 0

Answer:first part is A and C, second part is C, third part is 40 m/s and the fourth part is zero

Explanation: I guessed and got them right lol

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swat32

Answer: exothermic

EXPLANATION: any process in which heat energy is released is called an exothermic process. For example burning of wood produces heat, so combustion of wood is an exothermic process.

When chemicals were not mixed they were at room temperature and when we mix them exothermic reaction took place and heat was released which raised the temperature of mixture.

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3 years ago
A small amount of a solid is added to water. The observation made after fifteen minutes is shown in the figure. Which of these s
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Answer:

B) sand

Explanation:

A) Oil is a wrong choice because it is a liquid not a solid and also if it is oil, it will float over the water surface as a droplets.

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C) Sugar is a wrong choice, because small amount of sugar will dissolve in water and be a homogeneous solution and does not appear as a particles.

D) Wood ships is also a wrong choice, even it is a solid and does not dissolve in water, but it will float over the water surface.

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3 years ago
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Phase change is the solute
the one that doesn't phase change is the solvent.
A
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