3 years ago

In which way are photosynthesis and cellular respiration different?

Chemistry

2 answers:

tangare [24]3 years ago

7 0

The correct answer is D

Lyrx [107]3 years ago

3 0

Answer:

D. Photosynthesis uses carbon dioxide while cellular produces carbon dioxide

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no but that is what we were taught

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Write a question here it’s simple.

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In the early 1960s, radioactive strontium-90 was released during atmospheric testing of nuclear weapons and got into the bones o

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Answer:

52.54 %

Explanation:

Half life = 29 years

$t_{1/2}=\frac {ln\ 2}{k}$

Where, k is rate constant

So,

$k=\frac {ln\ 2}{t_{1/2}}$

$k=\frac {ln\ 2}{29.0}\ {years}^{-1}$

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Using integrated rate law for first order kinetics as:

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Where,

$[A_t]$ is the concentration at time t

$[A_0]$ is the initial concentration

So,

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$\frac {[A_t]}{[A_0]}=0.5245$

<u>The strontium-90 remains in the bone = 52.54 %</u>

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3 years ago

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How do you determine how many neutrons an element has?

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