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il63 [147K]
2 years ago
15

Would you expect the substance to float or sink in water if mass is 25g and volume is 7 cm​

Chemistry
1 answer:
Sonbull [250]2 years ago
4 0

Answer:

Sink

Explanation:

For a substance to float in water, it must be less dense than water. The density of water is 1 g/cm^3. To find the density of the substance, we can do mass/volume, which in this case is 25g/7cm^3. We see that 25/7 > 1, so the substance would sink.

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A 15.75 g piece of iron absorbs 1097 joules of heat energy, and its temperature changes from 25°C to 177°C. Calculate the specif
vekshin1

The answer for the following problem is mentioned below.

Explanation:

Given:

mass of iron (m) = 15.75 grams

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final temperature (t_{2}) = 177°C

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specific heat (c)

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 c = q ÷ mΔT

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