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ki77a [65]
2 years ago
12

PLEASE HELP ON MY FINAL

Chemistry
1 answer:
svet-max [94.6K]2 years ago
4 0

Answer:

The answer is D- creation of atmospheric systems that provide oxygen while absorbing carbon dioxide

Explanation:

By using elimination of choice that answer seems the most accurate.

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All objects have mass<br> O True<br> O False
ludmilkaskok [199]
The answerrrrr is truw
7 0
2 years ago
Boron has primarily two isotopes, one with an atomic mass of 11.0 amu and another with an atomic mass of 10.0 amu. If the abunda
Masja [62]

Answer:

The atomic mass of the boron atom would be <em>10.135</em>

Explanation:

This is generally known as relative atomic mass.

Relative atomic mass or atomic weight is a physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass of 1/12 of the mass of a carbon-12 atom. Since both quantities in the ratio are masses, the resulting value is dimensionless; hence the value is said to be relative and does not have a unit.

<em>Note that the relative atomic mass of atoms is not always a whole number because of it being isotopic in nature.</em>

  • <em>Divide each abundance by 100 then multiply by atomic mass</em>
  • <em>Do that for each isotope, then add the two result. Thus</em>

Relative atomic mass of Boron = (18.5/100 x 11) + (81/100 x 10)

                                                 = 2.035 + 8.1

                                                 = 10.135

5 0
2 years ago
Massive amounts of energy are contained in an atom's: Select one:
melamori03 [73]
Nucleus.
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6 0
3 years ago
What percentage of the filtrate's water that enters bowman's capsule is reabsorbed into the blood? select one:
maksim [4K]
99% of the filtrate's water that enter bowman's capsule is reabsorbed into the blood. This is because the water and the salts contained in the filtrate are needed for optimal functioning of the body system. 
3 0
3 years ago
Alkaline batteries are non-rechargeable.<br> Why do alkaline batteries eventually stop working?
scoray [572]

Answer:

Alkaline batteries stop working when all of the manganese dioxide has been converted.

Explanation: Hope it helps you :)))

Have a good day

4 0
2 years ago
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