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ella [17]
3 years ago
6

Someone help please!

Chemistry
1 answer:
ankoles [38]3 years ago
6 0

Answer:

D

Explanation:

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A sample that is 74.5 percent chloride by mass is dissolved in water and treated with an excess of
12345 [234]

Answer:

Total mass of original sample = 0.38 g

Explanation:

Percentage of chloride = 74.5%

Mass of AgCl  precipitate = 1.115 g

Mass of original sample = ?

Solution:

Mass of chloride:

1.115 g/ 143.3 g/mol × 35.5 g/mol

0.0078 g × 35.5 = 0.28 g

Total mass of compound:

Total mass = mass of chloride / %of Cl × 100%

Total mass = 0.28 g/ 74.5% × 100%

Total mass = 0.0038 g× 100

Total mass = 0.38 g

5 0
4 years ago
if excess nitrogen gas reacts with 600 cm³ of hydrogen gas at room conditions , calculate the maximum volume of ammonia produced
spin [16.1K]

Answer:

400 cm³ of ammonia, NH₃.

Explanation:

The balanced equation for the reaction is given below:

N₂ + 3H₂ —> 2NH₃

From the balanced equation above,

3 cm³ of H₂ reacted to produce 2 cm³ of NH₃.

Finally, we shall determine the maximum volume of ammonia, NH₃ produced from the reaction. This can be obtained as illustrated below:

From the balanced equation above,

3 cm³ of H₂ reacted to produce 2 cm³ of NH₃.

Therefore, 600 cm³ of H₂ will react to produce = (600 × 2)/3 = 400 cm³ of NH₃.

Thus, 400 cm³ of ammonia, NH₃ were obtained from the reaction.

5 0
3 years ago
Compare and contrast the molecular activity of solids, liquids, and gases.​
cupoosta [38]

Answer:

The molecules in a solid are close together and they vibrate in place. The molecules in a liquid move quickly and farther apart from eachother. The particles in a gas move freely at high speeds and slide past eachother.

5 0
3 years ago
What happens because of nuclear fusion?
Bas_tet [7]

Answer:

d

Explanation:

3 0
3 years ago
Is the molecule H2+ stable?
Genrish500 [490]
Answer: Yes

The antibonding orbital is empty. Thus, H2 is a stable molecule.
3 0
3 years ago
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