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ser-zykov [4K]
2 years ago
6

How much Cu-61 (half-life about 3 hours) would remain from a 2 mg sample after 9 hours?​

Chemistry
1 answer:
vivado [14]2 years ago
3 0

Answer: 0.25mg

Explanation:

Just took the quiz

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Lina20 [59]

Answer:

3,048 minutes

Explanation:

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that number times 20

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2 years ago
Competition occurs when
Katen [24]

Answer:

Competition occurs when <em>(A) two or more organisms need the same resource.</em>

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2 years ago
HURRY PLEASE!!
Alexandra [31]
From what i can gather it looks like d 

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3 years ago
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In a combustion experiment, it was found that 12.096 g of hydrogen molecules combined with 96.000 g of oxygen molecules to form
Mkey [24]
The mass change, or the mass defect, can be calculated by the formula that is very known to be associated with Albert Einstein. 

E = Δmc²
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5 0
3 years ago
How many of the planets have an orbital period of less than one Earth year?
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Since orbital period depends on how far you are from the sun, planets closer to the sun have a orbital period less than one earth year.

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2 years ago
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