1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dmitry_Shevchenko [17]
2 years ago
5

What coefficient is missing in C2H4 + (?)O2 → 2CO2 + 2H2O?

Chemistry
1 answer:
Daniel [21]2 years ago
7 0

Answer:

3

Explanation:

you must multiply everything out till everything is equal on both sides

You might be interested in
Use the unbalanced equation NH3+O2=NO+H2O to find the mole ratio between NO and H2O
Leona [35]

Answer:

For every 4 moles of NO created, 6 moles of H2O are created so the ratio is 4:6

Explanation:

You just need to balance the equation.

NH3 + O2 -> NO + H2O

1. I started with hydrogen; there's 3 on the left and 2 on the right. Multiply them together to find a number they both go into (3×2=6, but in this case 6 hydrogen on each side does not work so I doubled it so there is 12 hydrogen on each side).

This will bring you to this:

4NH3 + O2 -> NO + 6H2O

2. Now get equal amounts of nitrogen on each side. There's 4 nitrogen on the left side, and 1 on the right. Multiply the right by 4. Then you will have this:

4NH3 + O2 -> 4NO + 6H2O

3. Last thing you need to do is have the same amount of oxygen on both sides. On the left you have 2 and on the right you have 10. Get the left to 10 by multiplying it by 5.

Balanced: 4NH3 + 5O2 -> 4NO + 6H2O

In word form, for every reaction between 4 moles of ammonia and 5 moles of oxygen, 4 moles of nitric oxide and 6 moles of water will be created.

I hope this helps!

5 0
3 years ago
How are fluids used and controlled in manufactured devices?
BlackZzzverrR [31]

Answer:

Fluid power systems perform work by a pressurized fluid bearing directly on a piston in a cylinder or in a fluid motor. A fluid cylinder produces a force resulting in linear motion, whereas a fluid motor produces torque resulting in rotary motion. Within a fluid power system, cylinders and motors (also called actuators) do the desired work. Control components such as valves regulate the system.

4 0
2 years ago
Ideal gas (n 2.388 moles) is heated at constant volume from T1 299.5 K to final temperature T2 369.5 K. Calculate the work and h
bija089 [108]

Answer : The work, heat during the process and the change of entropy of the gas are, 0 J, 3333.003 J and -10 J respectively.

Explanation :

(a) At constant volume condition the entropy change of the gas is:

\Delta S=-n\times C_v\ln \frac{T_2}{T_1}

We know that,

The relation between the C_p\text{ and }C_v for an ideal gas are :

C_p-C_v=R

As we are given :

C_p=28.253J/K.mole

28.253J/K.mole-C_v=8.314J/K.mole

C_v=19.939J/K.mole

Now we have to calculate the entropy change of the gas.

\Delta S=-n\times C_v\ln \frac{T_2}{T_1}

\Delta S=-2.388\times 19.939J/K.mole\ln \frac{369.5K}{299.5K}=-10J

(b) As we know that, the work done for isochoric (constant volume) is equal to zero. (w=-pdV)

(C) Heat during the process will be,

q=n\times C_v\times (T_2-T_1)=2.388mole\times 19.939J/K.mole\times (369.5-299.5)K= 3333.003J

Therefore, the work, heat during the process and the change of entropy of the gas are, 0 J, 3333.003 J and -10 J respectively.

7 0
3 years ago
THE GOVERNMENT WANTS TO CONTROL US ALL!!! LOL JK
Nina [5.8K]

Answer:

No!! IT'S TRUE!!!!!

Explanation:

7 0
3 years ago
Read 2 more answers
What would happen if the earths core cooled
maria [59]

Answer:

Shutterstock

Explanation:

when the molten outer core cools and become solid ,a very long time in future,the earth's magnetic field will disappear

6 0
2 years ago
Other questions:
  • If 0.15 mol of I2 vapor can effuses through an opening in a heated vessel in 36 sec, how long will it take 0.15 mol of Cl2 to ef
    5·1 answer
  • What does the illustrated symbol on the element key mean?
    6·1 answer
  • What was a major accomplishment of the Apollo mission
    5·1 answer
  • Acetylene gas, C2H2, releases large quantities of heat when it burns, making it ideal for welding applications. This gas is gene
    6·1 answer
  • List three organelles found in cells and describe their functions.
    13·2 answers
  • The table below shows some of the stars in our galaxy and their numbers of light years from the Sun.
    14·1 answer
  • Question 4 of 10
    13·1 answer
  • Can anyone please help me!! What is d. Beat the eggs?? A physical or a chemical change?
    6·1 answer
  • Explain what will happen to the organisms that is affected by human activities.
    6·1 answer
  • A typical engagement ring has 0.77 cm^3 of gold. What mass is present?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!