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lina2011 [118]
2 years ago
15

Pleeeeeeeeeeeeeeeeeeas help

Chemistry
1 answer:
SIZIF [17.4K]2 years ago
4 0

Answer:

For young organic materials, the carbon-14 (radiocarbon) method is used. The effective dating range of the carbon-14 method is between 100 and 50,000 years.

Explanation:

The answer is the explanation.

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How much heat is released when 10.0 grams of a substance cools 15 degrees? The specific
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Answer:

Q = 525 J

Explanation:

Given that,

Mass, m = 10 grams

The change in temperature, \Delta T=15^{\circ} C

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Q=mc\Delta T\\\\Q=10\ g\times 3.5\ J/g^{\circ} C\times 15^{\circ} C\\Q=525\ J

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4 0
3 years ago
Which diagram shows a wave with the highest frequency? Chemistry question.
notsponge [240]

The correct answer is D

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Wave frequency is mainly determined by the number of waves that pass through a specific point. In a diagram, this can be found by analyzing the number of crests (top of the wave) and the space between them. For example, wave B is the one with the lowest frequency because there is only one crest and this shows only one wave passing at a specific point. On the opposite, wave D is the one with the highest frequency because this shows multiple crests and this indicates the frequency is high or that many waves pass through a specific point in a short time.

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Which of the following is NOT an example of how watersheds can change over time?
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Answer:

D. Flooding occurs when too much rain falls upstream.

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