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lys-0071 [83]
3 years ago
11

Definition of reactant

Chemistry
1 answer:
Alecsey [184]3 years ago
5 0

<em>Noun </em>

a substance that takes part in and undergoes change during a reaction.

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Identify limiting and excess reagents when 25g of nitrogen reacts with 25g of hydrogen. How many grams of ammonia gas are formed
Makovka662 [10]

Answer:

Nitrogen is limiting reactant while hydrogen is in excess.

Explanation:

Given data:

Mass of N₂ = 25 g

Mass of H₂ = 25 g

Mass of ammonia formed = ?

Solution:

Chemical equation:

N₂ + 3H₂    →     2NH₃

Number of moles of Nitrogen:

Number of moles = mass/ molar mass

Number of moles = 25 g/ 28 g/mol

Number of moles = 0.89 mol

Number of moles of hydrogen:

Number of moles = mass/ molar mass

Number of moles = 25 g/ 2 g/mol

Number of moles = 12.5 mol        

Now we will compare the moles of both reactant with ammonia.

                   H₂            ;             NH₃

                    3             :              2

                    12.5        :            2/3×12.5 = 8.3

                 

                   N₂            ;             NH₃

                    1              :              2

                    0.89        :            2×0.89 = 1.78

The number of moles of ammonia produced by nitrogen are less thus nitrogen is limiting reactant while hydrogen is in excess.

7 0
3 years ago
What type of molecular model shows all the atoms and bonds in an organic molecule
ValentinkaMS [17]

Answer:

Structural formula shows the atoms and bondsin an organic compound.

Explanation:

Structural formula of methane shows

1 Carbon atom is singly bonded to 4 hydrogen atoms.

4 0
2 years ago
If a pharmacist dissolves 1.2 grams of a medicinal agent in 60 ml of a cough syrup having a specific gravity of 1.20, what is th
guapka [62]

Mass of medicinal agent taken = 1.2 g

the volume is 60 mL

Specific gravity = 1.20

So the mass of solution = specific gravity X volume = 1.20 * 60 = 72g

Now if we have increased the volume by 0.2 so the new volume = 60.2

New mass = 72 + 1.2 = 73.2  

Specific gravity = mass /  volume = 73.2 / 60.2 = 1.22 g/mL

7 0
3 years ago
What happens when a glass of water is set in the sun until the water
zalisa [80]

Answer:

D is the answer

Explanation:

6 0
2 years ago
Add me on insta? Free points btw
hammer [34]

Answer:

i'm down for that

Explanation:

4 0
3 years ago
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