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
8090 [49]
3 years ago
7

If you burn 23.4 g of hydrogen and produce 209 g of water, how much oxygen reacted?

Chemistry
1 answer:
Kitty [74]3 years ago
6 0
The chemical reaction is expressed as:

2H2 + O2 = 2H2O

To determine the amount of oxygen used in the reaction, we use the amount of water produced and the relation of the substances in the reaction we do as follows:

209 g H2O ( 1 mol / 18.02 g ) ( 1 mol O2  / 2 mol H2O ) ( 32 g / 1 mol ) = 185.57 g O2
You might be interested in
Determine the volume of fluid in the graduated cylinder shown.
alexgriva [62]

Answer:

47.3 ml

Explanation:

The graduated cylinder is shown in the image attached.

Now we have to take a good look at the cylinder, the lines between 45 and 50 are 46, 47, 48 and 49. Even though the points in between two lines weren't graduated but we can intelligently guess the correct volume by observing the upper meniscus of the liquid. Hence the answer.

8 0
3 years ago
Read 2 more answers
Three blocks are shown here pls HELPPPP:
White raven [17]

Answer: I am confident the answer is B

Explanation:

forgive me if im wrong

5 0
2 years ago
Given what you observe at the molecular/atomic level, why would surface area have this effect?
LenKa [72]

Answer:

Increasing the surface area of a reactant increases the frequency of collisions and increases the reaction rate. Several smaller particles have more surface area than one large particle. The more surface area that is available for particles to collide, the faster the reaction will occur.

Explanation:

:)

5 0
2 years ago
In which of the following states of matter are the particles moving the fastest? (4 points)
xenn [34]
Hello.

The answer is Gas.
In gases the partcails have more space and can move faster.

Have a nice day
7 0
3 years ago
Simple machines make work easier. Most simple machines reduce the amount of effort force needed to move an object. This cart has
tino4ka555 [31]
Sorry I skate and usually the smaller wheel rolls faster. Try C. then It's like longboard wheels they roll pretty fast.
7 0
3 years ago
Read 2 more answers
Other questions:
  • You could add aquous hydrochloric to the solution to precipitate out silver chloride. What volume of a 0.130 M aqueous hydrochlo
    6·1 answer
  • In the whole earth, the four most common elements (by mass) are oxygen, silicon, magnesium, and ________.
    10·2 answers
  • What wil most likely result if a diabetic injects an overdose of insulin
    5·1 answer
  • *QUICK*
    11·1 answer
  • The better we measure the better things ____
    10·1 answer
  • The image shows an example of a sedimentary rock.
    13·2 answers
  • A rarefraction is generated when particles move<br> A:together<br> B.closer <br> C.under<br> D.apart
    6·1 answer
  • Look at this graph:
    9·1 answer
  • In the fall, how does the high pressure area<br> affect the hurricane?
    10·1 answer
  • Be sure to answer all parts. what are the concentrations of hso4−, so42−, and h in a 0. 31 m khso4 solution? (hint: h2so4 is a s
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!