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Mademuasel [1]
3 years ago
6

This drawing shows the internal anatomy of a sponge.

Chemistry
1 answer:
Evgen [1.6K]3 years ago
6 0

Answer:

there is no drawing

Explanation:

?

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Would the amount of solid magnesium increase decrease or stay the same if you added a strong acid to it?
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Suppose you have 100 grams of radioactive plutonium-239 with a half-life of 24,000 years. how many grams of plutonium-239 will r
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To solve this problem, let us first calculate for the rate constant k using the half life formula:

t1/2 = ln 2 / k

where t1/2 = half life period = 24,000 years, therefore k is:

k = ln 2 / 24,000

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Now we use the rate equation:

A = Ao e^(-k t)

where,

A = mass of Plutonium-239 after number of years

Ao = initial mass of Plutonium-239

t = number of years

 

A. t = 12,000 years, find A

A = 100g e^(- 2.89 x 10^-5 * 12,000)

A = 70.7 g

 

B. t = 24,000 years, find A

A = 100g e^(- 2.89 x 10^-5 * 24,000)

A = 50 g

 

C. t = 96,000 years, find A

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<span>A = 6.24 g</span>

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Which of these is not true about weight
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