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2 years ago

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What are some of the Causes of air pollution in Utah, and what Effects does that have on you and/or society?

2 answers:

Scilla [17]2 years ago

4 0

Answer:

cars

Explanation:

liubo4ka [24]2 years ago

4 0

Answer:

well I don't live in Utah but I have a cabin up there. The air can be caused by the gas coming out of cars and trucks and burning solid fuel. I think it effects Utah's people and society because them breathing the bad chemicals goes through their lungs and will cause them to have breathing problems.

Explanation:

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A first-order reaction (A → B) has a half-life of 25 minutes. If the initial concentration of A is 0.900 M, what is the concentr

Oksanka [162]

Answer:

0.6749 M is the concentration of B after 50 minutes.

Explanation:

A → B

Half life of the reaction = $t_{1/2}=25 minutes$

Rate constant of the reaction = k

For first order reaction, half life and half life are related by:

$k=\frac{0.693}{t_{1/2}}$

$k=\frac{0.693}{25 min}=0.02772 min^{-1}$

Initial concentration of A = $[A]_o=0.900 M$

Final concentration of A after 50 minutes = $[A]=?$

t = 50 minute

$[A]=[A]_o\times e^{-kt}$

$[A]=0.900 M\times e^{-0.02772 min^{-1}\times 50 minutes}$

[A] = 0.2251 M

The concentration of A after 50 minutes = 0.2251 M

The concentration of B after 50 minutes = 0.900 M - 0.2251 M = 0.6749 M

0.6749 M is the concentration of B after 50 minutes.

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2 years ago

The periodic table is based on an element's

Stels [109]

The answer will be B.

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Green plants absorbs sunlight to power photosynthesis, the chemical synthesis of food from water and carbon dioxide. The compoun

Serggg [28]

Answer: The frequency of this light is $6.62\times 10^{14}s^{-1}$

Explanation:

To calculate the wavelength of light, we use the equation:

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c = speed of light = $3.0\times 10^8m/s$

$\nu$ = frequency of light = ?

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Answer:

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