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Liono4ka [1.6K]
3 years ago
12

Which of these boxes will not accelerate?

Chemistry
1 answer:
love history [14]3 years ago
3 0

Answer:

B as all the forces cancel out

Explanation:

20-20=0

25-25=0

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A solution is prepared by mixing 38.0L of pyrimidine and 442.0L of water. What is the percent volume of pyrimidine in this solut
klasskru [66]

I have the same question and cant still answer it so I need the answers

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3 years ago
The conversion of cyclopropane to propene occurs with a first-order rate constant of . How long will it take for the concentrati
Gennadij [26K]

This is an incomplete question, here is a complete question.

The conversion of cyclopropane to propene occurs with a first-order rate constant of 2.42 × 10⁻² hr⁻¹. How long will it take for the concentration of cyclopropane to decrease from an initial concentration 0.080 mol/L to 0.053 mol/L?

Answer : The time taken will be, 17.0 hr

Explanation :

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 2.42\times 10^{-2}\text{ hr}^{-1}

t = time passed by the sample  = ?

a = initial concentration of the reactant  = 0.080 M

a - x = concentration left = 0.053 M

Now put all the given values in above equation, we get

t=\frac{2.303}{2.42\times 10^{-2}}\log\frac{0.080}{0.053}

t=17.0\text{ hr}

Therefore, the time taken will be, 17.0 hr

5 0
3 years ago
Draw an ecosystem with 10 biotic and 5 abiotic factor
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I won’t draw it but I can give you 10 Biotic and 5 abiotic
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Hope this image helps you! :)

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3 years ago
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Answer:

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3 years ago
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