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
Usimov [2.4K]
3 years ago
7

____H2 + ____O2 ---> ____H20 2, 1, 1 2, 2, 1 2, 1, 2 1, 2, 2

Chemistry
2 answers:
marin [14]3 years ago
8 0

Answer:

2 H2 + O2 => 2 H2O aka 2, 1, 2

Explanation:

H2 + O2 => H2O

On the left side there are currently 2 H's and 2 O's

On the right side there are currently 2 H's and 1 O

We have to match both sides to equal the same number of H's and O's

As previously stated, both sides have 2 H's without doing anything to them so let's ignore that and skip to the O2

One the left there are 2 O's and on the right there is 1 O

We cannot remove O's so in order to equal each other we must look at the right side

To get from 1 O to 2 O, we can multiply H2O by 2

This will give us 4 H's, and 2 O's

This makes the O's equivalent to each other

But now, the H's are imbalanced

The left side has 2 H's while the right side has 4 H's

To make the 2 H's go to 4 H's, we multiply the 2 H's by 2

This gives us 4 H's on both sides and now the equation is balanced

Tems11 [23]3 years ago
6 0
2H2+O2----->2H2O. I hope this helps
You might be interested in
when Jane drives to work, she always places her purse on the passengers seat. by the time she gets to work, her purse has fallen
marishachu [46]
Hmm, friction maybe? I guess it depends on how fast she stopped?
7 0
3 years ago
The acid-dissociation constants of HC3H5O3 and CH3NH3+ are given in the table below. Which of the following mixtures is a buffer
sergey [27]

Answer:

A mixture of 100. mL of 0.1 M HC3H5O3 and 50. mL of NaOH

Explanation:

The pH of a buffer solution is calculated using following relation

pH=pKa+log(\frac{salt}{acid} )

Thus the pH of buffer solution will be near to the pKa of the acid used in making the buffer solution.

The pKa value of HC₃H₅O₃ acid is more closer to required pH = 4 than CH₃NH₃⁺ acid.

pKa = -log [Ka]

For HC₃H₅O₃

pKa = 3.1

For CH₃NH₃⁺

pKa = 10.64

pKb = 14-10.64 = 3.36 [Thus the pKb of this acid is also near to required pH value)

A mixture of 100. mL of 0.1 M HC3H5O3 and 50. mL of NaOH

Half of the acid will get neutralized by the given base and thus will result in equal concentration of both the weak acid and the salt making the pH just equal to the pKa value.

8 0
3 years ago
The correct electron configuration of the O2-ion is
Mnenie [13.5K]
I think it’s A sorry if i’m wrong
6 0
2 years ago
Which is the correct equation for the reaction of magnesium with hydrochloric acid to produce hydrogen gas and magnesium chlorid
djyliett [7]

Answer:

Mg(s) + 2 HCl(aq) --> MgCl 2(aq) + H 2(g)

8 0
2 years ago
What is the boiling point of ch3ch2ch2ch3
Tasya [4]
It has a pb of 69c from google
7 0
3 years ago
Other questions:
  • Drag the types of electromagnetic waves to place them in order of increasing frequency.
    12·2 answers
  • A chemist dilutes 185 of the 3.0 M solution with water until a new volume of 750 is obtained. Calculate the new concentration
    6·1 answer
  • Is breaking an egg an example of a physical or chemical change? explain your answer.
    15·1 answer
  • A 0.7834 g sample of a primary standard KHP was titrated with 38.45 mL of NaOH solution to a phenolphthalein end-point. What is
    8·1 answer
  • The length of the school's gymnasium is 30 meters long. How many centimeters long is the school's gymnasium​
    6·2 answers
  • When Truman walks across the tile floor in his kitchen, the sound of his shoes is loud and sharp. Which of the following best de
    11·1 answer
  • A sample of Xe takes 75 seconds to effuse out of a container. An unknown gas takes 37 seconds to effuse out of the identical con
    6·2 answers
  • At what pressure would 10 moles of Br2 gas have a temperature of 333k In a 77L tank?
    7·1 answer
  • MARK THE EXTENSIVE PROPERTIES(Check that all apply)
    6·1 answer
  • ¿Puede ocurrir una reacción química sin generar cambios visibles?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!