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Anna11 [10]
3 years ago
13

Question 1: Gases diffuse easily through these types of solids

Chemistry
1 answer:
nexus9112 [7]3 years ago
3 0

Q1: Gases diffuse easily through amorphous or porous solids.

Q2:All changes in phase are called change in state of matter.

Answer:

Explanation:

Gases diffuse easily through amorphous or porous solids. Usually solids are densely packed with no space. But porous solids can help in diffuse gas into them. Due to the vacancy present in these solids, gas can easily diffuse through these types of solids.

Similarly, the phase changes lead to change in the state of matter. As the basic of change in phase leads to change in its state from solid to liquid or from liquid to gas or vice versa. So change in state of matter will occur in any change in phase.

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8. Which of the following are reasons why Index fossils are chosen for determining ages of rocks? Select all that apply .
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Answer:

B. Distributed over a very wide range

D. Limited life existence in geologic time.

Explanation:

Index fossils are very unique fossils that helps in determining the relative ages of rocks and biostratigraphic correlation. They are usually called guide fossils.

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3 years ago
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Answer:

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All of the following require breaking and forming chemical bonds except
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5.4 When looking down the C{{TOP-HAT-MATH-TOKEN-0}}-C{{TOP-HAT-MATH-TOKEN-1}} bond in 2,3-dimethylbutane, what is the most stabl
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Answer:

The most stable conformer would be the anti-conformer when the substituent methyl groups are farthest away from each other.

Explanation:

Isomers are chemical compounds with the same molecular formula but with different molecular structures.

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To achieve a stable configuration, the methyl group substituents need to be as far apart as possible (that is, in an anti-position) to minimise repulsion.

The closer the methyl groups are to each other, the more they repel each other and the more unstable the conformer becomes.

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