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
VashaNatasha [74]
3 years ago
5

12. Which of the following is a combustion reaction?

Chemistry
1 answer:
DochEvi [55]3 years ago
5 0

Answer:

A. CH4 + 202

+ CO2 + 2H2O

Explanation:

You might be interested in
Draw the structural formula for 3-ethyl-3-methyl-1-pentyne. Click the "draw structure" button to launch the drawing utility.
Dima020 [189]

Answer:

See attached picture.

Explanation:

Hello,

In this case, for the given name, you can verify the structure on the attached picture, wherein you can see verify the presence of both the ethyl and methyl radicals at the third carbon as well as the triple bond at the first carbon.

Best regards.

6 0
3 years ago
The amount of heat energy needed to heat 200 g of water from 15 °C to its boiling point, and boil it, is
Svetllana [295]

can you explain it further

4 0
3 years ago
How does an atom become an atom of another element is
ivann1987 [24]
Can you give me the anwsers

3 0
3 years ago
The ka of hypochlorous acid (hclo) is 3.0 ⋅ 10−8 at 25.0 °c. calculate the ph of a 0.0375m hypochlorous acid solution.
Scrat [10]
We can set up an ICE table for the reaction:                      
                      HClO          H+     ClO-
Initial              0.0375       0        0
Change         -x               +x      +x
Equilibrium    0.0375-x     x        x

We calculate [H+] from Ka:     
     Ka = 3.0x10^-8 = [H+][ClO-]/[HClO] = (x)(x)/(0.0375-x)

Approximating that x is negligible compared to 0.0375 simplifies the equation to         
     3.0x10^-8 = (x)(x)/0.0375     
     3.0x10^-8 = x2/0.0375     
     x2 = (3.0x10^-8)(0.0375) = 1.125x10^-9     
     x = sqrt(1.125x10^-9) = 0.0000335 = 3.35x10^-5 = [H+]
in which 0.0000335 is indeed negligible compared to 0.0375.

We can now calculate pH:     
     pH = -log [H+] = - log (3.35 x 10^-5) = 4.47
6 0
3 years ago
Which of these is a common feature for the lac and trp operon? A. Regulatory proteins bind to operator B. Regulatory proteins bi
Arisa [49]
 C. <span>Regulatory proteins bind to repressor

Both produces certain proteins to break down lactose as a food source.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • Plz answer ASAP!
    9·2 answers
  • Salt crystals are shaped like cubes. Salt is part of the _____. isometric crystal system monoclinic crystal system hexagonal cry
    7·2 answers
  • Which molecule could have an expanded octet? hno2 h2co3 h3po4?
    11·1 answer
  • Who studied heredity and is known as the father of Genetics? (I am not surrre lol)
    14·1 answer
  • Why do the air molecules inside a bicycle tire speed up as the temperature gets warmer?
    15·2 answers
  • When electrons are removed from the outermost shell of a calcium atom becomes
    11·1 answer
  • How does evelyn hear music?​
    7·1 answer
  • Use the drop-down menu to complete the statement. This is why they have similar Atoms of elements in the same group have the sam
    5·1 answer
  • Warm air masses tend to originate from:
    9·2 answers
  • Which is more active? a. Iron or copper? ___________________
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!