3 years ago

PLEASE ANSWER FAST AND YOU WILL GET 15 POINTS AND BRAINLIEST if you answer both questions

Chemistry

1 answer:

nika2105 [10]3 years ago

8 0

Answer:

1. C. Lithosphere

2. A. Earthquakes

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Why is it easier to demolish a building than it was to build it

vfiekz [6]

Man this answer could be so dark

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3 years ago

A balance was tested against a standard calibration mass with a certified value of 200.002 g and produced the following readings

wlad13 [49]

Answer:

Precise but not accurate.

Explanation:

We can tell the performance of the balance is precise, because the repeated measurements give values close to one another.

However, the performance of the balance is not accurate, as the mean value of the repeated measurements (195.587) is not close to the value considered as true (in this case the standard calibration mass with a certified value of 200.002 g).

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3 years ago

An unknown substance is heated from 10 °C to 25 °C. The table below shows the state of the substance at different temperatures.

bezimeni [28]

Answer:

Its melting point is 17 °C.

Explanation:

The melting point of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium.

<em>So, the melting point is 17 °C.</em>

And this is shown in the figure attached.