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
salantis [7]
2 years ago
11

What is the sum of the coefficients needed to balance the combustion reaction of methane?

Chemistry
1 answer:
pishuonlain [190]2 years ago
4 0

Answer:  The sum of the coefficients needed to balance the combustion reaction of methane is 6.

Explanation:

Combustion is a chemical reaction in which hydrocarbons are burnt in the presence of oxygen to give carbon dioxide and water.

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The chemical equation for combustion of methane will be :

CH_4+2O_2\rightarrow CO_2+2H_2O

The coefficient foer methane is 1 , 2 for oxygen , 1 for carbon dioxide and 2 for water. The sum is 6.

You might be interested in
Given equilibrium partial pressures of PNO2= 0.247 atm, PNO = 0.0022atm, and PO2 = 0.0011 atm calculate the equilibrium constant
maxonik [38]
Answer 1:
Equilibrium constant (K) mathematically expressed as the ratio of the concentration of products to concentration of reactant. In case of gaseous system, partial pressure is used, instead to concentration.

In present case, following reaction is involved:

                        2NO2    ↔      2NO + O2

Here, K = \frac{[PNO]^2[O2]}{[PNO2]^2}

Given: At equilibrium, <span>PNO2= 0.247 atm, PNO = 0.0022atm, and PO2 = 0.0011 atm
</span>
Hence,  K = \frac{[0.0022]^2[0.0011]}{[0.247]^2}
                 = 8.727 X 10^-8

Thus, equilibrium constant of reaction = 8.727 X 10^-8
.......................................................................................................................

Answer 2:
Given: <span>PNO2= 0.192 atm, PNO = 0.021 atm, and PO2 = 0.037 atm.

Therefore, Reaction quotient = </span>\frac{[PNO]^2[O2]}{[PNO2]^2}
                                              = \frac{[0.021]^2[0.037]}{[0.192]^2}
                                              = 4.426 X 10^-4.

Here, Reaction quotient > Equilibrium constant.

Hence, <span>the reaction need to go to reverse direction to reattain equilibrium </span>
5 0
3 years ago
Read 2 more answers
Breathable oxygen is an examlpe of what
vova2212 [387]
Oxygen is an example of a gas
8 0
3 years ago
The proper name for PCl6 is phosphorus hexachloride.<br><br> TRUE<br><br> FALSE
Alenkasestr [34]
The proper name for PCI6 is phosphorus hexachloride. Therefore it’s true
8 0
3 years ago
Which of the following likely has the lowest electronegativity value?
Harman [31]
<span>Cesium has the lowest electronegativity value. </span>
7 0
3 years ago
The volume of gas is 200.0
Ber [7]

Answer:

40 atm.

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 200 mL

Initial pressure (P₁) = 2 atm

Final volume (V₂) = 10 mL

Temperature = constant

Final pressure (P₂) =?

The final pressure of the gas can be obtained by using the Boyle's law equation as shown below:

P₁V₁ = P₂V₂

2 × 200 = P₂ × 10

400 = P₂ × 10

Divide both side by 10

P₂ = 400 / 10

P₂ = 40 atm

Thus, the final pressure of the gas is 40 atm.

7 0
3 years ago
Other questions:
  • What is the molarity of a solution that contains 1.67 moles in 1,750 mL?
    7·1 answer
  • HELP PLEASE<br>Explain why the elements of group 1 and 7 are quite reactive
    11·1 answer
  • What type of energy conversion takes place in a voltaic cell?
    6·2 answers
  • What happens to glucose in the Calvin cycle? <br><br> Plz help
    9·1 answer
  • Write the empirical formula of at least four binary ionic compounds that could be formed from the following ions:
    11·2 answers
  • How many moles of aluminum are needed to react with 3.6 mol of FeO? 2Al(s) + 3FeO(s) → 3Fe(s) +Al₂O₃(s)
    14·1 answer
  • How many ions in 6.41 moles of K2O? Please show work.
    12·1 answer
  • How does carbon exist in the atmosphere?
    7·1 answer
  • What happens in a double-replacement reaction?
    5·2 answers
  • HELP MEE please with this question this question is 100pts and i will give branliest i only have 5 min left guys thanx:) Which s
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!