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MakcuM [25]
3 years ago
15

Which of the following conditions would decrease the ability of a person to hear a sound? A. The distance to the sound source be

comes shorter. B. A wave loses energy as it moves through a medium. C. The liquid medium in which the sound travels is replaced with an elastic solid. D. The frequency of the sound remains steady at 100 Hz.
Chemistry
2 answers:
Neporo4naja [7]3 years ago
8 0

B. A wave loses energy as it moves through a medium.   is correct!

Zinaida [17]3 years ago
7 0
The answer is B). A wave loses energy as it moves through a medium.
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Explanation:

a mixture of pure substances. If you have a mixture of tennis ballsand marbles (not pure substances by the way), it would be easy toseparate the mixture. However, it is more difficult to separate asand (also not a pure substance) and salt mixture. Even with verygood tweezers and a magnifying glass, it would be extremelytedious. You could take advantage of the fact that salt dissolvesin water and sand does not. To separate iron powder from an ironand sand mixture you can take advantage of the magnetic propertiesof iron and separate the mixture.

To summarize a complete procedure for separating a mixture ofseveral substances, it is best to prepare a flow chart. A flowchartis a schematic representation of an algorithm or a stepwiseprocess, showing the steps as boxes of various kinds, and theirorder by connecting these with arrows. Flowcharts are used indesigning or documenting a process.

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cluponka [151]

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i can relate

Explanation:

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3 years ago
In the reaction C7H16+_______O2→ 8H2O + 7CO2, what coefficient should be placed in front og O2 to balence the reaction
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A mixture that has two or more substances that are spread out evenly is called _____
svlad2 [7]

Answer:

D

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