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astraxan [27]
3 years ago
10

Which of these is an example of physical change?

Chemistry
1 answer:
lana [24]3 years ago
6 0
A. Boiling water is an example of physical change, whereas digesting food, breaking glass, and shoveling snow are not.
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How many grams of solute are present in 1250 mL of a 1.34 M NaNO3 solution?
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Why is it important to know where a resource, that you're using, is renewable or nonrenewable?
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2 years ago
The following charges on individual oil droplets were obtained during an experiment similar to Millikan's. Determine a charge fo
RSB [31]

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- 1.602 x 10⁻¹⁹coulombs

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4 0
3 years ago
If a piece of aluminum with a mass of 3.99 g and a temperature of 100.0 °C is dropped
Vinil7 [7]

Answer:

The final temperature of the system is 27.3°C.

Explanation:

Heat lost by aluminum = 3.99 × 0.91 × (100-T)

                                     = 3.631 (100-T)

Heat gained by water = 10 × 4.184 × (T-21)

                                    = 41.84 (T-21)

As,

                                Heat gained = Heat loss

                          or, 3.631(100-T) = 41.84(T-21)

                          or,363.1 -  3.631 T = 41.84 T - 878.64)

                          or, (41.84+ 3.631) T = 878.64 +363.1

                          or  T= \frac{1241.74}{45.47}

                         or, T = 27.3°C

Hence the final temperature is 27.3°C.

8 0
3 years ago
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