Target due: 12/24/20 Al changes saved
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ūD 3. Scientists think that the rise in global temperature during the last one hundred years is
due to an increase of carbon dioxide in the atmosphere. Which question would BEST help
scientists assess the claim that humans are responsible for the rising global temperature?
✓ Rock
O What is the source of most of the carbon dioxide in the atmosphere?
> Le
What is the source of the increase of carbon dioxide in the atmosphere?
> Les
What is the increase in the concentration of carbon dioxide in the atmosphere?
> Less
What is the mechanism by which carbon dioxide heats Earth?
> Less
> Lesso
> Lesso
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Ma

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l

considering the question as per the attachment

here we can see that the radon nuclide has 222 as the atomic mass number and 86 as the atomic number.

when it undergoes nuclear fission it gives polonium which has atomic mass number as 218 and atomic number will be 84 along with a helium nucleus which has 4 atomic mass number and 2 as its atomic number.

222 = 218 + 4 (atomic mass number)

86 = ? + 2; therefore ? = 86-2 = 84.

the atomic mass number of polonium will be 84.