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MariettaO [177]
3 years ago
11

Which substance is a greenhouse gas that is emitted by human activities, is the most widespread, and remains in the air the long

est? water vapor methane fluorinated gas carbon dioxide
Chemistry
2 answers:
adelina 88 [10]3 years ago
7 0
The answer is carbon dioxide. <span>Carbon dioxide (CO2) covers approximately 75% of the heating effect of current greenhouse gas emissions. This is basically produced by burning coal and oil, and deforestation is also a very important contributor.</span>
poizon [28]3 years ago
3 0
I believe the answer is Carbon dioxide, please correct me if I am wrong!

Thank you.

-PiggyPig
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If the distance between a point charge and a neutral atom and is multiplied by a factor of 5, by what factor does the force on t
dexar [7]

Given :

The distance between a point charge and a neutral atom and is multiplied by a factor of 5.

To Find :

By what factor does the force on the neutral atom by the point charge change.

Solution :

We know, electrostatic force between two object is directly proportional to product of charge and inversely proportional to distance between them.

Now, charge in neutral atom is 0 C.

So, the electrostatic force between two of them is also 0 N.

Therefore, by changing distance between the charge the forces did no change ( it remains zero).

3 0
3 years ago
What is aluminum’s nuclear charge?
natita [175]

Answer:All six of the ions contain 10 electrons in the 1s, 2s, and 2p orbitals, but the nuclear charge varies from +7 (N) to +13 (Al)

Explanation:

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5 0
3 years ago
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An atom has a mass number of 24 and 13 neutrons. what is the atomic number of this atom? express your answer as an integer.
Murljashka [212]
A=24
N(n)=13

N(p)=A-N(n)

N(p)=24-13=11

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atomic number is 11
5 0
3 years ago
The gram formula mass of a compound is 48 grams. The mass of 1.0 moles of this compound is(1) 1.0g (2) 4.8g (3) 48.0g (4) 480g
adell [148]
The answer is (3) 48.0 g. The gram formula mass means that the mass of one mol compound. So the mass of 1.0 mol of this compound is equal to the gram formula mass 48 g.
7 0
3 years ago
What is the emperor call formula for a compound that is 31.9% potassium 28.9% chloride and 39.2% oxygen
My name is Ann [436]
Lets take 100 g compound.
It will have
K - 31.9 g
Cl - 28.9 g
O - 39.2 g

M(K) = 39.1 g/mol
M(Cl) = 35.5 g/mol
M(O) = 16.0 g/mol

K - 31.9 g*1/mol/39.1 g ≈ 0.816 mol
Cl - 28.9 g*1 mol/35.5 g ≈ 0.814 mol
O - 39.2 g*1mol/16.0 g ≈ 2.45 mol

K : Cl : O = 0.816 : 0.814 : 2.45

K : Cl : O = 1 : 1 : 3

KClO3 - potassium chlorate (<span>Berthelot's salt)  </span>
3 0
3 years ago
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