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nataly862011 [7]
3 years ago
8

Lava at Earth’s surface or ______ below Earth’s surface cools and hardens to form mineral crystals.

Chemistry
1 answer:
nevsk [136]3 years ago
5 0

The most appropriate answer would be magma. Lava is a magma that reaches the Earth's surface, which is technically it is also a magma, and magma is located below the Earth's surface. Lava at Earth's surface or magma below Earth's surface cools and harden to form mineral crystals.

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A 2.500g sample of compound containing only Carbon and Hydrogen is found containing 2.002g of Carbon. Determine the empirical fo
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The empirical formula : CH₃

<h3>Further explanation</h3>

Given

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Required

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Solution

Mass of Hydrogen :

= 2.5 - 2.002

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Mol ratio C : H :

C : 2.002/12 = 0.167

H : 0.498/1 = 0.498

Divide by 0.167 :

C : H = 1 : 3

7 0
3 years ago
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Answer:

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Explanation:

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3 years ago
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7 0
4 years ago
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4 years ago
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