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Pani-rosa [81]
1 year ago
15

21.Mount Mitchell Acid RainIn 1915, Mount Mitchell was designatedas North Carolina's first state park andwas covered by a dense

forest. Today,the forest has thinned considerably as aresult of pollution and acid deposition.According to the Division of Parks andRecreation, the forest experiences acidfogs approximately 80% of the year.State officials have determined thatmuch of the air pollution in NorthCarolina originates in other states andis transported by winds. In 2004, theEnvironmental Protection Agency beganto develop a plan to reduce harmfulemissions in states that are "upwind"from North Carolina.How will acid deposition most likelyaffect the carbon cycle on MountMitchell?A. Acid deposition will have no directeffect on the carbon cycle.B. Sulfur dioxide will replace carbondioxide in the carbon cycle.C. With fewer trees, the park will storea greater amount of carbon dioxide.D. There will be fewer trees to absorbcarbon dioxide from the atmosphere.
Chemistry
1 answer:
Phoenix [80]1 year ago
5 0

Answer:

D

Explanation:

Here, we want to get how the acid deposition will affect mount Mitchell

From the question, we have it that the forest has thinned as a result of pollution and acid deposition

What this simply means is that there would be a lesser number of trees in the forest

This leads to the amount of carbon iv oxide being absorbed by the forest to decrease (trees utilize carbon iv oxide in photosynthesis)

Hence, the correct answer choice here is that there will be fewer trees to absorb carbon dioxide from the atmosphere

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Irina18 [472]

Answer:

The farther away the planet the slower the revolution around the earth. the closer the faster.

Explanation:

its like a tetherball pole when it wraps around it gets closer and spins faster and faster untill it stops. Brainliest?

6 0
3 years ago
Read 2 more answers
Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 97. g of octane is mi
zhannawk [14.2K]

Answer: 61 grams

Explanation:

To calculate the number of moles, we use the equation:

\text{Number of moles of octane}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{97g}{114g/mol}=0.85moles

\text{Number of moles of oxygen}=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{150g}{32g/mol}=4.69moles

The chemical equation for the combustion of octane in oxygen follows the equation:

2C_8H_{18}+25O_2\rightarrow 16CO_2+18H_2O

By stoichiometry of the reaction;

25 moles of oxygen react with 2 moles of octane

4.69 moles of oxygen react with=\frac{2}{25}\times 4.69=0.37  moles of octane

Thus, oxygen is the limiting reagent as it limits the formation of product and octane is the excess reagent.

25 moles of oxygen produce 18 moles of water

4.69 moles of oxygen produce=\frac{18}{25}\times 4.69=3.38  moles of water.

Mass of water produced=moles\times {\text{Molar mass}}=3.38\times 18g/mol=61g

The maximum mass of water that could be produced by the chemical reaction is 61 grams.

6 0
3 years ago
Can somebody that is good at science help me with these two questions? Please and thank you!
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1. The forces make the train float because the poles are the same on each side causing them to repell (north and north repell)

2. B is more stable. If you pushed A it would fall and that would cause more disturbance
8 0
3 years ago
Ammonium carbonate decomposes upon heating according to the following balanced equation:
Ugo [173]

Answer : The total volume of gas produced are, 11.5 L

Explanation :

First we have to calculate the moles of ammonium carbonate.

\text{Moles of }(NH_4)_2CO_3=\frac{\text{Mass of }(NH_4)_2CO_3}{\text{Molar mass of }(NH_4)_2CO_3}

Molar mass of (NH_4)_2CO_3 = 96.094 g/mol

\text{Moles of }(NH_4)_2CO_3=\frac{11.9g}{96.094g/mol}

\text{Moles of }(NH_4)_2CO_3=0.124mol

Now we have to calculate the moles of total gas.

The given balanced chemical reaction is:

(NH_4)_2CO_3(s)\rightarrow 2NH_3(g)+CO_2(g)+H_2O(g)

From the balanced chemical reaction we conclude that,

As, 1 mole of (NH_4)_2CO_3 react to give 4 mole of gas

So, 0.124 mole of (NH_4)_2CO_3 react to give 0.124\times 4=0.496 mole of gas

Now we have to calculate the volume of gas.

Using ideal gas equation:

PV=nRT

where,

P = Pressure of gas = 1.05 atm

V = Volume of gas = ?

n = number of moles = 0.496 mole

R = Gas constant = 0.0821L.atm/mol.K

T = Temperature of gas = 24.0^oC=273+24.0=297.0K

Putting values in above equation, we get:

1.05atm\times V=0.496mole\times (0.0821L.atm/mol.K)\times 297.0K

V=11.5L

Thus, the total volume of gas produced are, 11.5 L

6 0
3 years ago
A 1.0 g sample of a cashew was burned in a calorimeter containing 1000. g of water, and the temperature of the water changed fro
Savatey [412]

Answer:

The correct answer is option C.

Explanation:

1.0 g sample of a cashew :

Heat released on  combustion of 1.0 gram of cashew = -Q

We have mass of water = m = 1000 g

Specific heat of water = c = 4.184 J/g°C

ΔT = 30°C - 25°C = 5°C

Heat absorbed by the water :  Q

Q=1000 g\times 4.184 J/g^oC\times 5^oC=20,920 J

Heat released on  combustion of 1.0 gram of cashew is -20,920 J.

3.0 g sample of a marshmallows  :

Heat released on  combustion of 3.0 g sample of a marshmallows = -Q'

We have mass of water = m = 2000 g

Specific heat of water = c = 4.184 J/g°C

ΔT = 30°C - 25°C = 5°C

Heat absorbed by the water :  Q'

Q'=2000 g\times 4.184 J/g^oC\times 5^oC=41,840 J

Heat released on 3.0 g sample of a marshmallows= -Q' = -41,840 J

Heat released on 1.0 g sample of a marshmallows : q

q =\frac{-Q'}{3} = \frac{-41,840 J}{3}=-13,946.67 J

Heat released on  combustion of 1.0 gram of marshmallows -13,946.67 J.

-20,920 J. > -13,946.67 J

The combustion of 1.0 g of cashew releases more energy than the combustion of 1.0 g of marshmallow.

5 0
3 years ago
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