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
harina [27]
3 years ago
13

What element is undergoing oxidation in the following reaction?. . CH4(g) +2O2 (g) -> CO2(g) +2H2O(g). . . option . a) C. b)

O . c)H. . .
Chemistry
2 answers:
SVETLANKA909090 [29]3 years ago
4 0
The correct answer is a.) C. Oxidation occurs when an element loses electrons and increases its oxidation state. In the chemical equation, Carbon in CH4 has an oxidation state of 4- while Carbon in CO2 has an oxidation of 4+.
schepotkina [342]3 years ago
4 0

Answer : The correct option is, (a) C

Explanation :

The given balanced reaction is,

CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)

This reaction is a combustion reaction in which a hydrocarbon react with oxygen to give carbon dioxide and water as a product. Or we can say that, on oxidation a hydrocarbon gives carbon dioxide and water.

The gain of oxygen and loss of electrons are the oxidation and the loss of oxygen and gain of electrons are the reduction.

In the given reaction, the element carbon (C) is undergoing oxidation. That means on oxidation the carbon (C) element produces carbon dioxide.

Hence, the correct option is, (a) C

You might be interested in
What is the pH of 0.166 M triethylammonium chloride, (C2H5)3NHCl. The Kb of triethylamine, (C2H5)3N, is 5.2 x 10-4.?
777dan777 [17]

Answer:

5.7

Explanation:

(C₂H₅)₃NHCl dissociates according to the following equation.

(C₂H₅)₃NHCl ⇒ (C₂H₅)₃NH⁺ + Cl⁻

The molar ratio of (C₂H₅)₃NHCl to (C₂H₅)₃NH⁺ is 1:1. Then, the concentration of (C₂H₅)₃NH⁺ is Ca = 0.166 M.

(C₂H₅)₃NH⁺ is the conjugate acid of (C₂H₅)₃N. Given the Kb of (C₂H₅)₃N, we can calculate Ka for (C₂H₅)₃NH⁺ using the following expression.

Ka × Kb = Kw

Ka = Kw / Kb

Ka = 1.0 × 10⁻¹⁴ / 5.2 × 10⁻⁴

Ka = 1.9 × 10⁻¹¹

(C₂H₅)₃NH⁺ dissociates according to the following equation.

(C₂H₅)₃NH⁺ ⇄ (C₂H₅)₃N + H⁺

We can calculate [H⁺] using the following expression.

[H⁺] = √(Ca × Ka) = √(0.166 × 1.9 × 10⁻¹¹) = 1.8 × 10⁻⁶

The pH is:

pH = -log [H⁺] = -log 1.8 × 10⁻⁶ = 5.7

7 0
3 years ago
Having the same number of valence electrons means having similar chemical properties.
Luba_88 [7]

Answer:

True

Explanation:

Because atoms with the same number of valence electrons react in similar ways with other elements.

6 0
3 years ago
Predict the shape of the molecule.
GuDViN [60]

Number of electron pairs = \frac{1}{2}[V+N-C+A]

2

1

[V+N−C+A]

V = number of valence electrons present in central atom

N = number of monovalent atoms bonded to central atom

C = charge of cation

A = charge of anion

SbCl_5SbCl

5

:

In the given molecule, antimony is the central atom and there are five chlorine as monovalent atoms.

The number of electron pairs are 5 that means the hybridization will be sp^3dsp

3

B and geometry of the molecule will be trigonal bipyramidal.

6 0
2 years ago
How do you solve for x?​
Ad libitum [116K]

Answer:

substitution is the best method or collecting like terms

Explanation:

3 0
3 years ago
How many total of atoms are in 0.370gr of P2O5
Irina-Kira [14]
142 g ---------------- 6.02 x 10²³ molecules
0.920g g ------------ ( molecules )

molecules = 0.920 x ( 6.02 x 10²³ ) / 142

molecules = 5.53 x 10²³ / 142

= 3.89 x 10²¹ molecules

1 molecule P2O5 -------------------------- 7 atoms
3.89 x 10²¹ molecules -------------------- ( atoms )

atoms = ( 3.89 x 10²¹) x 7 / 1

atoms = <span>2.72 x 10²² atoms of P2O5


 Hope this helps!!!
</span>
8 0
3 years ago
Other questions:
  • Na + Cl2 ------&gt; ?<br><br><br><br>what will be formed? ​
    9·2 answers
  • Write a balanced equation for the reaction of sulfuric acid (H,SO) and
    6·1 answer
  • The half of the moon facing the sun is always lit, but the different phases happen because:
    9·1 answer
  • B vitamins are a group of water soluble compounds that are important in cell metabolism. Each one has a different chemical struc
    15·1 answer
  • An 80.0-gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its
    8·1 answer
  • How many atoms are in a sample of 2.89 moles of potassium (K)?
    15·1 answer
  • Cu (II) sulfate exists as a hydrate. It has many practical uses including use as a fungicide and pesticide. When mixed with chro
    13·1 answer
  • When enthalpy of reactants is higher than the product then the reaction will be.
    10·1 answer
  • What is the purpose of stirring a solution while it is being heated? Select one: To slow down any reactions that occur in the so
    5·1 answer
  • A(n) _?_ is generated in a wire when it moves across a magnetic field.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!