3 years ago

Hhheppppp fffaaast

Chemistry

1 answer:

umka21 [38]3 years ago

4 0

Answer:

False

Explanation:

Lead sulfate is insoluble in water and sinks in water

(sorry if it's wrong)

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Answer:

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Explanation:

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M1 = 0.075 M

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v=velocity
.5(4)(100)=200
That should be the answer.

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3 years ago

What is the half-life of an isotope that decays to 6.25% of its original activity in 18.9 hours?

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Radioactive material obeys 1st order decay kinetics,
For 1st order reaction, we have
k = $\frac{2.303}{t}Xlog \frac{\text{initial conc.}}{\text{final conc.}}$
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