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fredd [130]
3 years ago
5

WHAT IS OZONE POLLUTION

Chemistry
1 answer:
Alexxx [7]3 years ago
5 0

Answer: In the Earth's lower atmosphere, near ground level, ozone is formed when pollutants emitted by cars, power plants, industrial boilers, refineries, chemical plants, and other sources react chemically in the presence of sunlight. Ozone at ground level is a harmful air pollutant.

Explanation: In the Earth's lower atmosphere, near ground level, ozone is formed when pollutants emitted by cars, power plants, industrial boilers, refineries, chemical plants, and other sources react chemically in the presence of sunlight. Ozone at ground level is a harmful air pollutant.

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Where is DNA found in your body?
Dennis_Churaev [7]

Answer:

Researchers refer to DNA found in the cell's nucleus as nuclear DNA. An organism's complete set of nuclear DNA is called its genome. Besides the DNA located in the nucleus, humans and other complex organisms also have a small amount of DNA in cell structures known as mitochondria.

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8 0
3 years ago
Read 2 more answers
What volume of H2O is formed at stp when 6.0g of Al is treated with excess NaOH? NaOH + Al + H2O —-&gt; NaAl(OH)4 + H2 (g)
ioda

this is the formula and answer of this question

8 0
3 years ago
How does the number of valence electrons in an atom relate to the elements placement on the periodic table?
frez [133]
If the number of valence electron is one than it will be placed in group IA. elements of group IIA will have two valence electrons and so on....
8 0
3 years ago
given the balanced equation representing a reaction: 2H2 O2 = 2H2O, what is the total mass of water formed when 8 grams of hydro
Vadim26 [7]
The reaction equation represents the mole number ratio. So the hydrogen is 8/2=4 mol. Oxygen is 64/32=2 mol. So the water is 4 mol. The mass of water is 4*18=72 g. Or if it is confirmed that they are completely reacted. You can simply add them up.
3 0
3 years ago
Suppose a snack bar is burned in a calorimeter and heats 2,000 g water by 20 °C. How much heat energy was released?
prohojiy [21]

Heat energy released : 167.2 kJ

<h3>Further explanation</h3>

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

m = 2000 g

c = 4.18  J/ g ° C  

∆t = 20 ° C  

\tt Q=2000\times 4.18\times 20\\\\Q=167200~J=167.2~kJ

7 0
3 years ago
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