Nén một hỗn hợp khí gồm 3,0 mol nitơ và 7,0 mol hiđro trong một bình kín, phản ứng có sẵn chất xúc tác thích hợp và nhiệt độ của bình được giữ không đổi ở 450oC. Sau phản ứng thu được 8 mol một hỗn hợp khí.

(a) Tính hiệu suất phản ứng tổng hợp NH3.

(b) Tính thể tích khí amoniac được tạo thành (ở đktc)

Answers

Answer 1
Ihgcvbbbbnnbvffffdfccj

Related Questions

Can someone plz help me ? :(

Answers

Answer:

C. A persons lost limb can be replaced with an advanced robotic limb

N is a number between_____ and______

Answers

Answer:

m and o

Explanation:

n is the number between m and o

R indicates round seeds that are dominant over the wrinkled variety, represented by r. For each numbered individual in the pedigree give the genotype and phenotype.

Answers

Answer:what grade this is

Explanation:

Is a mixture of stones?

homogeneous or heterogeneous

Answers

Answer:

Heterogeneous mixture because it is not soluble and in non uniform texture.

A girl pushes a toy boat to the right with a 15 N force. A boy pushes the same boat to the left with a 20 N force. what is the net force? what will happen?​

Answers

Answer:

the net force is 5. I believe the boat with move to the left due to the increase amount of force the boy is using to push the boat.

Each of the following can be used to make observations, except:

Answers

Can u give us the options

I NEED THE ANSWER QUICKKK!!!
Match each step of the scientific method with its matching example.


Match Term Definition

Analysis A) Based on what other scientists have done, algae life cycles are affected by light.

Research B) Under the same temperature and water conditions, green algae is grown under natural light, blue light, and green light.

Conclusion C) The data recorded in the experiment supports the hypothesis about how algae reproduce.

Experiment D) The growth of green algae is recorded every day for several weeks and compared.

Answers

Answer:  This is hard to do accurately, but here is my best assessment.

Explanation:

Experiment:  B  -  describes how the experiment was done

Conclusion:  A  -  The data support the prevailing hypothesis

Research:  D   -   This is what we analyzed

Analysis:  C  -  We compared the data

How many micrograms (ug)
are equal to 0.000520 grams?
[?] ug

Answers

530 I’m pretty sure

Answer:

520

Explanation:

This is easy

If a person consumes 50% of their daily kilocalories from carbohydrates and 30% from protein, what percentage of their daily kilocalories will come from fat?

Answers

The percentage of daily kilocalories of the person that come from fat is 20%.

The diet of a person is composed mainly of carbohydrates (C), proteins (P) and fat (F), that is, the sum of the 3 sources amount to 100% of the consumed kilocalories. Given that 50% of the daily kilocalories of this person come from carbohydrates and 30% come from protein, the percentage that comes from fats is:

[tex]C + P + F = 100\%\\F = 100\% - C - P\\F = 100\% - 50\% - 30\% = 20\%[/tex]

The percentage of daily kilocalories of the person that come from fat is 20%.

You can learn more about percentage here: https://brainly.com/question/92258

write down the importance of solution in our daily life in any 4 points​

Answers

Explanation:

Four importances :

1. Solution of tea leaves, water and sugar is used to make tea

2. Solutions of the chemicals are used in labrotary

3. The drinks that we take are also a kind of solution

4. The air is also a solution of different gases

XH2 + YN2 → ZNH3

what are The correct values for x, y and z

Answers

Answer:

hvncsdvbfnnmgfhgjhkgnbdffhfgjgfjfjgjgjgfjfgjgfjfjfgjgfjfhfdhdhdhhdgfgdhdfhfdhd

Explanation:

jfdhfdhfdhdfhhdfhdfhhdfhdfhfdhrdhdfhfhhdhdf

When a metal such as copper is heated,it expands. Can anyone tell me what happens to the metal particles as the solid metal expands?​

Answers

Answer:

The metal molecules inside start to vibrate faster, causing the solid to change to liquid if exposed to the intense temperature over a long period of time.

Explanation:

As my answer states, but for an explanation, lets say you are boiling an ice cube, it will start to turn into liquid water, that is because it has been exposed to that heat for a long period of time. The same will happen for the metal, if its exposed for long enough, it will turn into a liquid, then can be turned into a gas because the molecules are vibrating so quickly that they start to easily move apart.

Hope this helps, let me know if any more clarification is needed.

A car travels 4 miles in 0.08 hours. The speed of the car is miles/hr.

Answers

50 miles an hour

I don’t know how to explain it. Sorry :(

How is the kinetic energy of molecules changing when the molecules move faster?

The kinetic energy ...

a

is not changing

b

depends on the molecules.

С

is decreasing.'

d

is increasing

Answers

Answer:

I think it is increasing

What are the two key ingredeints that help science move forward?

Answers

Answer:

science needs both ideas the hypothesis and facts the quantitative results to move forward

Explanation:

the two primary features of a scientific hypothesis are falsifiability and testability which are reflected in an If…then statement summarizing the idea and in the ability to be supported or refuted through observation and experimentation

Is it permissible to taste substances in the lab?

Answers

No, you should never taste anything that is used in the lab.

CAN SOMEONE PLEASE HELP ME OUT !!!

Answers

Answer:

133242535455555555555555

Explanation:

I.Molten Nacl conducts electricity due to the presence a
a-free electrons
b. free ions
c. Free molecules .
d. Atoms of sodiium and chloride.

Answers

Answer:

Hello! Your answer would be BELOW

Explanation:

So a molten salt powers electricity. Hence, molten sodium chloride conducts electricity due to the presence of free ions. So, the correct answer is option D.      Atoms of sodium and chloride.

Hope I helped! Hope you make an 100%

-Amelia♥

1 Rajah 1 menunjukkan satu contoh mikroorganisma. Diagram 1 shows an example of microorganisms. 0 Rajah 1 / Diagram I Antara yang berikut, yang manakah pengelasan yang betul bagi mikroorganisma ini? Which of the following is the correct classification for this microorganism? A Alga / Algae B Fungi / Fungi C Virus / Virus D Bakteria / Bacteria​

Answers

Answer:

d. Bacteria is the correct classification

A homogeneous mixture is a composition of two or more
impure substances in a definite proportion, displaying non-
uniform characteristics.
TRUE
FALSE

Answers

The answer is FALSE. I did it on ck-12

En la tienda compre una botella con agua la cual no venía etiquetada, ¿Que unidades de medición debe contener la etiqueta para saber la masa de la botella, su volumen y a qué temperatura debe mantenerse?

Answers

La unidad de medición para saber la masa de la botella es el gramo.

La unidad de medición para saber el volumen de la botella es el centímetro cúbico o el mililitro o el litro.

La unidad de medición para saber la temperatura de la botella es el grado Celsius.

Inicialmente, vamos a asumir que la botella de agua ha sido comprada en una zona donde las unidades del Sistema Internacional de Medidas es el Sistema Estándar de Pesas y Medidas. En este problema, se requiere conocer tres unidades para la Masa, el Volumen y la Temperatura, cuyas Unidades Fundamentales son las siguientes:

Masa - Kilogramo ([tex]kg[/tex])Volumen - Metro cúbico ([tex]m^{3}[/tex])Temperatura - Grado Celsius ([tex]^{\circ}\,C[/tex])

Puesto que la adquisición de botellas de agua en almacenes se realiza en forma Minorista, tanto el Volumen como la Masa, Propiedades Extensivas de la Materia, deben basarse en Unidades Derivadas, es decir, Unidades relacionadas con Unidades Fundamentales mediante relación constante, mientras la Temperatura debe ser una Unidad Fundamental por ser una Propiedad Intensiva de la Materia. Las Unidades más usuales para la botella de agua son:

Masa - Gramo ([tex]g[/tex])Volumen - Centímetros Cúbicos ([tex]cm^{3}[/tex]) o Mililitros ([tex]mL[/tex]) o Litros (L)Temperatura - Grado Celsius ([tex]^{\circ}\,C[/tex])

La unidad de medición para saber la masa de la botella es el gramo.

La unidad de medición para saber el volumen de la botella es el centímetro cúbico o el mililitro o el litro.

La unidad de medición para saber la temperatura de la botella es el grado Celsius.

Invitamos a ver esta pregunta relacionada con Unidades del Sistema Internacional: https://brainly.com/question/19388259


1. Name 3 elements that are found in the same family/group

Answers

Answer:

Lithium, Hydrogen, Sodium, or Oxygen, Sulfur, Selenium They are all in the same column. Find three elements in the same family and list them. 4. Oxygen, Carbon, Nitrogen, Aluminum, Silicon, Phosphorous They are all in the same row

Explanation:

do all types of energy have the same amount of energy

Answers

Answer:

Light is one type of radiant energy. Sunshine is radiant energy, which provides the fuel and warmth that make life on earth possible. Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases when these particles move faster. Geothermal energy is the thermal energy in the earth.

Explanation:

Answer:No, for example electricity doesn't work like physical energy

Explanation:

At stp,250cm3 of gas had a mass of 0.36g.what result does this give for the molar mass of the gas​

Answers

Answer:

32,256g/mol

Explanation:

n= V/Vm

n = 0.25/22.4

n = 0.01

0.01 = 0.36/M

M = 0.36/0.01

In addition to how much force Earth exerts on the object, which features of an object affect its weight?
EEEE
O mass and location of the object
O shape and location of the object
O location of the object and how much energy the object has
O mass of the object and how much energy the object has

Answers

Answer:

mass of the object and how much energy the object has

What type of energy is stored in the nucleus of an atom

Answers

Answer:

nuclear energy

Explanation:

this holds the nucleus together

The radioactive elements used in nuclear
power plants are plutonium and
A thoriun B. tritium C. radon
D. radium E. uranium

Answers

I believe the answer is E. uranium

Which of the following is an
example of a homogeneous
mixture?
A. fruit punch
B. a sandwich
C. a toolbox

Answers

Answer:

fruit punch

Explanation:

............

The process by which any metal is extracted from its ore is

A)reduction
B)electrolysis
C)displacement
D)decomposition

Answers

Answer:

D displacement

Explanation:

This is because removing metal means your displacing it

What conditions might cause a
scientist to modify
or revise a
hypothesis

Answers

Answer:

Upon analysis of the results, a hypothesis can be rejected or modified, but it can never be proven to be correct 100 percent of the time. For example, relativity has been tested many times, so it is generally accepted as true, but there could be an instance, which has not been encountered, where it is not true.

Explanation:

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