What steps have power plants taken to reduce the amount of sulfur oxides released into the air

1 answer:

6 0

Answers are:
1) shift to fossil fuels or coals with lower amount of sulfur.
2) removal (spray dry system) of the sulfur oxide after combustion, removal sulfur during combustion (fluidised bed combustion) or reducing the sulpfur before combustion (washing the coal).
3) improve efficiency of conversion of fuel and coal to electric power.

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How many atoms are present in the following compound? C21H22N2O2

alisha [4.7K]

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2 years ago

if an element has an atomic mass of 127 and an atomic number of 53, how many neutrons does it have? 74 127 53 75

nadya68 [22]

74 is the answer u find it by subtracting the protons(atomic number) from atomic mas, so basically... 127-53 =74 neutrons

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2 years ago

NO2+H4➡2 H2O+N What are the elements

Firdavs [7]

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3 years ago

Read 2 more answers

Rank the compounds in each set in order of increasing acid strength.

Viktor [21]

Answer:

See explanation

Explanation:

For this question, we have to remember the effect of an atom with high electronegativity as "Br". If the "Br" atom is closer to the carboxylic acid group (COOH) we will have an inductive effect. Due to the electronegativity of Br, the electrons of the C-H bond would be to the Br, then this bond would be weaker and the compound will be more acid (because is easier to produce the hydronium ion $H^+$ ).

With this in mind, for A in the last compound, we have 2 Br atoms near to the acid carboxylic group, so, we will have a high inductive effect, then the C-H would be weaker and we will have more acidity. Then we will have the compound with only 1 Br atom and finally, the last compound would be the one without Br atoms.

In B, the difference between the molecules is the position of the "Br" atom in the molecule. If the Br atom is closer to the acid group we will have a higher inductive effect and more acidity.

See figure 1

I hope it helps!

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3 years ago

What compound is this?

Nezavi [6.7K]

Answer:

Carbon Tetrachloride

Explanation:

1 Carbon atom, 4 chlorine atoms (hence "tetra" prefix)

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2 years ago