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Soloha48 [4]
3 years ago
14

Someone please help me !!

Chemistry
1 answer:
Lisa [10]3 years ago
4 0

Answer:

the organism reproduces asexually

Explanation:

it only needs itself and it uses cell fission

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The answer is nuclear energy.
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Write a skeleton equation for the reaction in which aqueous sodium chloride
IRISSAK [1]

Answer:

Explanation:according to question:

. Nacl (aq) + AgNO3 (aq) --> AgCl

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3 years ago
All the substances listed below are fertilizers that contribute nitrogen to the soil.
kvv77 [185]

Answer:

Ammonia is the richest source of nitrogen on a mass percentage basis because it has 82.35% of nitrogen by mass.

Explanation:

Percentage of element in compound :

=\frac{\text{number of atoms}\times text{Atomic mass}}{\text{molar mas of compound}}\times 100

(a) Urea, (NH_2)_2CO

Molar mass of urea = 60 g/mol

Atomic mass of nitrogen = 14 g/mol

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N\%=\frac{2\times 14 g/mol}{60 g/mol}\times 100=46.67\%

(b) Ammonium nitrate, NH_4NO_3

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Atomic mass of nitrogen = 14 g/mol

Number of nitrogen atoms = 2

N\%=\frac{2\times 14 g/mol}{80 g/mol}\times 100=35.00\%

(c) Nitric oxide, NO

Molar mass of nitric oxide  = 30 g/mol

Atomic mass of nitrogen = 14 g/mol

Number of nitrogen atoms = 1

N\%=\frac{1\times 14 g/mol}{30 g/mol}\times 100=46.67\%

(d) Ammonia, NH_3

Molar mass of ammona = 17 g/mol

Atomic mass of nitrogen = 14 g/mol

Number of nitrogen atoms = 1

N\%=\frac{1\times 14 g/mol}{17 g/mol}\times 100=82.35\%​

Ammonia is the richest source of nitrogen on a mass percentage basis because it has 82.35% of nitrogen by mass.

4 0
3 years ago
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The pressure of a gas in a sealed container is 152 mm hg. This translates to?
Mashcka [7]
<span>the answer is 0.2 ATM</span>
5 0
3 years ago
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