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Artyom0805 [142]
2 years ago
9

Which of the following phases of matter has a fixed shape and volume

Chemistry
2 answers:
nikdorinn [45]2 years ago
7 0

<u>Answer:</u>

<em>Solid phase has a fixed shape and volume</em>

<em></em>

<u>Explanation:</u>

A solid has a definite volume and a definite shape.  

A liquid a definite volume and no definite shape.  

A gas no definite volume and no definite shape.

<u>Solids </u>

1. Solids have a definite volume and definite shape

2. The particles present in a solid are very closely packed since the intermolecular forces between them are very strong. The molecules do not move apart.  

<u>Liquids </u>

1. Liquids have a definite volume and no definite shape

2. The particles present in a liquid are closely packed since the intermolecular forces holds the molecules close together. The molecules slide over each other.

3. Liquids take up the shape of the container

<u>Gases </u>

1. Gases have no definite volume and no definite shape

2. The particles present in a gas are very loosely packed since the intermolecular forces are very weak.

3. There are no attractive forces between the molecules.

4. Gases spread through the container

kodGreya [7K]2 years ago
4 0

A matter in the solid phase has a fixed shape and volume.

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Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3NO2(g)+H2O(l)→2HNO3(l)+
Vesnalui [34]

Answer:

2 mol NO2

Explanation:

                                      3NO2(g)+H2O(l)→2HNO3(l)+NO(g)

from reaction                3 mol        1 mol

given                           11 mol          3 mol

for 3 mol NO2  -----   1 mol H2O

for x mol NO2  -----   3 mol H2O

3:x = 1:3

x = 3 *3/1 = 9 mol NO2

So, for 3 mol H2O are needed only 9 mol NO2.

But we have 11 mol NO2. So, NO2 is in excess, and

11 mol NO2 - 9 mol NO2 = 2 mol NO2 will be left after reaction.

3 0
3 years ago
What does nuclear fusion release?
Kisachek [45]

Answer:

Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles (neutrons or protons). The difference in mass between the reactants and products is manifested as either the release or absorption of energy

Explanation:

6 0
3 years ago
WILL GIVE BRAINLIEST !!!!
Leya [2.2K]

Answer:

NaI

Explanation:

Sodium has a charge of 1+ and iodine has a charge of 1-. They exist in a one-to-one ratio. Because they are ionic compounds, they go for the lowest ratio available.

4 0
2 years ago
the temperature of a gas is increased from 125C to 182C inside of a rigid container. the original pressure of the gas was 1.22at
Mariulka [41]

Answer:

1.39 atm

Explanation:

First find combined gas law equation. Then rearrange variable to match problem. You should get...

P2 = P1T2/T1

Next, change celcius temperatures to kelvin. Do this by adding 273 K (standard STP). Then fill in the numbers to go along with equation. You should get...

P2 = 1.22 atm x 455 K / 398 K = 1.39 atm

- If you need further explanation or more help please let me know. I would be glad to offer more of an explanation or help on other problems.

5 0
2 years ago
Se hacen reaccionar 100 g del agente oxidante con 25 g del agente reductor, según la reacción REDOX LaTeX: N_2\left(g\right)+H_2
Vesna [10]

Answer:

El reactivo en exceso es hidrógeno

97.12g NH₃ son formados

Explanation:

Basados en la reacción:

N₂(g) + 3 H₂(g) → 2 NH₃(g)

El hidrógeno pasa de estado de oxidación 0 a estado de oxidación +1. Al perder un electrón se oxida y es <em>el agente reductor.</em>

El nitrógeno pasa de estado 0 estado -3. Al ganar 3 electrones se reduce y es el <em>agente oxidante.</em>

100g de N₂ son (Peso molecular: 28g/mol):

100g × (1mol / 28g) = 3.57 moles de N₂

Y 25g de H₂ son (Peso molecular: 2g/mol):

25g × (1mol / 2g) = 12.5 moles de H₂

Como 3 moles de hidrógeno reaccionan por mol de nitrógeno, las moles de nitrógeno que se necesitan para hacer reaccionar completamente 12.5 moles de hidrógeno son:

12.5 moles H₂× (1 mol N₂ / 3 moles H₂) = 4.17 moles de nitrógeno.

Como hay 3.57 moles de nitrógeno, <em>el reactivo en exceso es hidrógeno.</em>

<em></em>

Como el reactivo limitante es el nitrógeno y 1 mol de nitrógeno produce 2 moles de amoniaco, las moles de amoniaco son:

3.57 moles de N₂ × (2 moles NH₃ / 1 mol N₂) = <em>7.14 moles de NH₃</em>

La masa producida idealmente es:

7.14 mol NH₃ ₓ (17g/mol) = <em>121.4 g de NH₃. </em>Como la eficiencia del proceso es del 80%:

121.4 g NH₃ × 80% =<em> 97.12g NH₃ son formados</em>

7 0
3 years ago
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