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2 years ago

5. Identify one environmental problem caused by

Chemistry

1 answer:

Minchanka [31]2 years ago

6 0

Answer:

High levels of nitrogen dioxide are also harmful to vegetation—damaging foliage, decreasing growth or reducing crop yields. Nitrogen dioxide can fade and discolour furnishings and fabrics, reduce visibility, and react with surfaces.

1-We could use low-nitrogen fuels

2- We could also modify combustion conditions to generate less NOx. Flue gas treatment techniques, such as selective cata- lytic reduction (SCR) processes, can remove NOx

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assume that a water balloon has the same number of water molecules as a helium balloon has helium atoms. If the mass of the wate

Aloiza [94]

Answer : The mass of the water molecule is 4.5 times greater than the mass of the helium atom.

Explanation :

Assumption : The number of water molecules is equal to the number of helium atoms

Given : The mass of water = 4.5 × The mass of helium ........(1)

The mass of Water = Mass of 1 water molecule × Number of water molecule

The mass of Helium = Mass of 1 helium atom × Number of helium atom

Now these two masses expression put in the equation (1), we get

Mass of 1 water molecule × Number of water molecule = 4.5 × Mass of 1 helium atom × Number of helium atom

As per assumption, the number of water molecules is equal to the number of helium atoms. The relation between the mass of water molecule and the mass of helium atom is,

Mass of water molecule = 4.5 × Mass of helium atom

Therefore, the mass of the water molecule is 4.5 times greater than the mass of the helium atom.

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2 years ago

If the prescribed dosage of milk of magnesia Mg(OH)2 is 3.5 moles, how many grams

OlgaM077 [116]

Answer:

Explanation:

1 mole is equal to 58.31968 grams.

so 3.5 moles equal to answer choice B

3 0

3 years ago

Convert 5° C into Fahrenheit.

Lady_Fox [76]

Answer:

5 in celcius is 41 in fahrenheit!

Explanation:

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identify the law that explains the following observation nitrogen dioxide can be formed by reacting 14 G of nitrogen with 32 gra

Mrrafil [7]

Answer:

The law of definite proportions. I had the same question for chemistry and this is what they said was right so I got 100%.

Explanation:

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lapo4ka [179]

answer attached in image

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