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
KatRina [158]
3 years ago
11

PLEASE HELP ASAP I WILL MARK AS BRAINLYEST

Chemistry
1 answer:
mario62 [17]3 years ago
3 0

Answer:

the 3rd one

Explanation:

You might be interested in
The combustion of 0.374 kg of methane in the presence of excess oxygen produces 0.983 kg of carbon dioxide. What is the percent
anyanavicka [17]
Assuming that the combustion formula is
CH4 + 2O2 --> 2H2O + CO2<span>,

That means for every 1 molecule of methane(CH4) there will be one molecule of carbon dioxide(</span>CO2) produced. Methane molecular weight 16, carbon dioxide molecular weight is 44. Then the percent yield should be:
1 * (0.374/ 16) /(0.983/44)= 0.374*44/ 0.983 * 16= 104.6%

You sure the number is correct? Percent yield should not exceed 100%
5 0
4 years ago
In the important industrial process for producing ammonia (the Haber Process), the overall reaction is:
irina [24]

Answer:

- 50.2 kJ

Explanation:

  • From the data given, the heat released per 2.0 moles of NH₃ is - 100.4 kJ.
  • The negative sign means that the reaction is exothermic and the energy is released.
  • <em>So, the ΔH in kJ of heat released per mole of NH₃ formed is (100.4 kJ/2) = - 50.2 kJ.</em>
4 0
3 years ago
Good morning guys :)
Ipatiy [6.2K]

Answer:

good morning :D

Explanation:

7 0
3 years ago
Read 2 more answers
How do you explain why air bags in cars are important during head on collisions using Newton’s first law?
Alenkasestr [34]
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force. This is referred to as interia . If an unbalanced force such as another vehilce hits another, than a persons air bag will then be active . Because when a car is in motion at a constant speed, that’s what will happen when an unbalanced force acts apon it .
7 0
4 years ago
Which statement accurately describes the movement of Earth’s plates due to convection currents?
choli [55]

Answer:

Volcanic eruptions.

6 0
3 years ago
Other questions:
  • What best describes a solution ?
    7·2 answers
  • What reagent would distinguish between Ag+ and Fe3+?
    13·1 answer
  • Which of the following best predicts the outcome of a fusion reaction involving isotopes of hydrogen?
    10·1 answer
  • Gadolinium oxide, a colorless powder which absorbs carbon dioxide from the air, contains 86.76 mass % gd. determine its empirica
    12·1 answer
  • How does oxygen satisfy the octet rule? Mark all that apply.
    14·1 answer
  • A sample of milk kept at 25 °C is found to sour 40 times as rapidly as when it is kept at 4 °C. Estimate the activation energy f
    12·1 answer
  • Calculate the ph of a solution with a [H3O+]=5.6x10-9M
    13·1 answer
  • what is the correct conversion factor by to which to multiply to convert moles of hyrdogen peroxide (H2O2) to moles of oxygen (O
    8·1 answer
  • Please help me whoever answers I’ll mark the the brainiest.
    8·1 answer
  • CAN U GUYS HELP ME ON THIS ONE PLEAASE IM TOO DUMB YO ANSWER THIS ONE IM NOT EVEN LYING TOO PLUS THIS ASSIGNMENT WAS DUE LAST FR
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!