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3 years ago

What does the word "atom" mean?

Chemistry

1 answer:

Artist 52 [7]3 years ago

7 0

cannot be cut into smaller pieces

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What bonds of the reactants are broken in this reaction? What bonds are formed in the product?

Y_Kistochka [10]

Bonds of reactants are broken and create new bonds to form different products and produces exothermic and endothermic reactions.
You are able to see a chemical reaction occur through a few signs
hope this helps

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3 years ago

Clouds are named for 3 different attributes including shape, _____________ & precipitation. *

mart [117]

Answer:

color is there right answer for this question please make me a brainliest and follow me please please please please

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3 years ago

Read 2 more answers

Balance the folowing equation. S + 02 ws SO:

Rzqust [24]

Answer:

s+o2=so2

Explanation:

i hope it will help u

6 0

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

Number of nitrogen atoms = 2

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

(b) Ammonium nitrate, $NH_4NO_3$

Molar mass of ammonium nitrate = 80 g/mol

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

What is the frequency of a radio wave with a wavelength of 578.0m

Radda [10]

Answer:

0.0017 Hz

Explanation:

the solution is in the photo

4 0

3 years ago