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nataly862011 [7]
3 years ago
11

On a class trip to the coast, you and your lab partner find a rock in the spot marked in red on the diagram. You show your teach

er the rock and he tells you to try to figure out what kind of rock it is by the composition and the way it has formed. You and your partner examine the rock. You make a list of observations, written above. What is an obvious choice and why?
Chemistry
2 answers:
NNADVOKAT [17]3 years ago
8 0
Cause it’s is the same
Amiraneli [1.4K]3 years ago
6 0

Answer:

D-Obsidian: it is an igneous rock often found in coastal areas, quickly cooled lava from volcanoes.

Explanation:

Obsidian has no crystals because it cools so quickly: it is called natural glass.

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The Answer is D. Suspending a heavy weight with a strong chain.

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1. Naturally occurring europium (Eu) consists of two isotopes was a mass of 151 and 153. Europium- 151 has an abundance of 48.03
sergejj [24]
The atomic mass of Europium is 152 amu

Work:
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Answer: Some kind of strainer system

Explanation:

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In part 3 of the lab, you discovered the relationship between temperature (T) and volume (V) of a gas.
rewona [7]

\frac{V1}{T1} = k

<u>Explanation:</u>

The relation between volume, V of gas and Temperature, T of a gas is related by Charles Law.

This law states that the volume of a given amount of gas held at a constant pressure is directly proportional to the Kelvin temperature

Thus,

\frac{V}{T} = k

where k is a constant

Therefore,

\frac{V1}{T1} = \frac{V2}{T2\\} = \frac{V3}{T3} ...

This shows, as the volume of a gas goes up, the temperature also goes up and vice-versa.

7 0
3 years ago
Substances that are likely to dissociate it water
Neporo4naja [7]

Answer:

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Explanation:

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