2 years ago

Name two compounds in unpolluted air?

1 answer:

3 0

The two compounds present in unpolluted air are carbon dioxide and water. You may think that carbn dioxide is a greenhouse gas, yes it is and at the same time not. There animals in the earth that produces carbon dioxide into the atmosphere, the carbon dioxide too, is also need for plan respiration.

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How many protons will there be if the atom has 3 electrons and a mass of 7 amu

Alisiya [41]

4 protons, 4 neutrons 3 electrons I think

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2 years ago

Saltpeter is a compound made of potassium (k), nitrogen (n), and oxygen (o). every 100.00 g of saltpeter contains 38.67 g potass

xeze [42]

First, we need to compute the mass of oxygen found in 100 grams of saltpeter:
mass of oxygen = 100 - (mass of potassium + mass of nitrogen)
= 100 - (38.67 + 13.86)
= 100 - 52.53
mass of oxygen in 100 grams saltpeter = 47.47 grams

Now, we can use cross multiplication to find the mass of oxygen in 328 grams saltpeter as follows:
mass of oxygen = (328 x 47.47) / 100 = 155.7016 grams

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2 years ago

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9. To become like a noble gas the element P will have a charge of

MrRa [10]

Answer:

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and eight in the last energy level if more than one

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3 years ago

Frozen water is less dense than liquid water, allowing lake organisms to survive winter.

klasskru [66]

True.

hope this helps!

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3 years ago

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Water acts as a<br> solvent<br> solute<br> solution<br> mixture

Serhud [2]

Answer: universal Solvent

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3 years ago