3 years ago

Give one example of how studying chemistry could be useful in everyday life

1 answer:

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Answer:

Chemistry is used almost everywhere you go. from the car you use to get to work (gasoline burning) to the nuclear reactors that power many homes ( uranium becoming unstable to product electricity.

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What is orbit? A. An increase in centripetal motion and mass friction. B. Resistance of an object to avoid friction. C. Gravity

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Imagine that you run this experiment and that the initial change in pressure is 0.0023 atm/s. what is the initial reaction rate?

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$\text{reaction rate} = 9.6 \times 10^{-5} \; \text{mol}\cdot\text{L}^{-1} \cdot \text{s}^{-1}$

Explanation:

Concentration $c = n / V$ ;

The reaction see a $0.0023 \; \text{atm}$ change in pressure per second. By the ideal gas law, this quantity would correspond to a change in concentration, $n/V$ of

$c = n / V = P / (n \cdot R) = 0.0023 / ((273.15 + 20) \times 0.0821 ) = 9.6 \times 10^{-5} \; \text{mol}$

where the ideal gas constant $R = 0.0821 \; \text{L} \cdot \text{atm} \cdot \text{mol}^{-1} \cdot \text{K}^{-1}$ .

By definition, $\text{reaction rate} = \Delta \text{concentration} / \Delta\text{time}$

Therefore, for this particular reaction

$\text{rate} = 9.6 \times 10^{-5} \; \text{mol} / (1 \; \text{s} ) = 9.6 \times 10^{-5} \; \text{mol} \cdot \text{L}^{-1} \cdot \text{s}^{-1}$

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2 years ago

Which solution turns litmus paper blue <br> A.acidic<br> B.basic<br> C.neutral<br> D.none

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Question: Which solution turns litmus paper blue

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Explanation:compound dissolves in water which cause the solution to become alkaline

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(jacemorris04)

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2 years ago

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