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
erastova [34]
3 years ago
13

A voltaic cell with an aqueous electrolyte is based on the reaction between Cd2 (aq) and Mg(s), producing Cd(s) and Mg2 (aq). Wr

ite half-reactions for the anode and cathode and then write a balanced cell reaction. Please include the states of matter in the equations.
Chemistry
1 answer:
Mariana [72]3 years ago
4 0

Answer:

Cd²⁺(aq) + 2 e⁻ → Cd(s)

Mg(s) → Mg²⁺(aq) + 2 e⁻

Cd²⁺(aq) + Mg(s) → Cd(s) + Mg²⁺(aq)

Explanation:

A voltaic cell is composed of two half-reactions:

Reduction (cathode): Cd²⁺(aq) + 2 e⁻ → Cd(s)

Oxidation (anode): Mg(s) → Mg²⁺(aq) + 2 e⁻

Cd²⁺ reduces to Cd (the oxidation number decreases from 2 to 0), whereas Mg oxidizes to Mg²⁺ (the oxidation number increases from 0 to 2). We can get the overall cell reaction by adding both half-reactions:

Cd²⁺(aq) + 2 e⁻ + Mg(s) → Cd(s) + Mg²⁺(aq) + 2 e⁻

Cd²⁺(aq) + Mg(s) → Cd(s) + Mg²⁺(aq)

You might be interested in
What are three methods of measuring the volume of an object?
Anarel [89]
L×w×h=v
length times width times height equals volume
the order in which you multiply does not matter
5 0
3 years ago
5. The combustion of coal with oxygen forms CO2 and releases 94 kcal of energy.
Sonbull [250]
Ok buddy sorry buddy I just got
8 0
3 years ago
carbohydrates are compounds contains carbon, hydrogen, and oxygen in which the hydrogen to oxygen ratio is 2:1. A certain carboh
iris [78.8K]

Answer:

empircal: c2h2o

molecular: probs c6h6o3

178 grams

5 0
3 years ago
Cyanogen, (CN)₂, has been observed in the atmosphere of Titan, Saturn’s largest moon, and in the gases of interstellar nebulas.
zhuklara [117]

The enthalpy of formation of CF4 is -678.82 kJ/mol.

<h3>What is enthalpy ?</h3>

A thermodynamic system's enthalpy H is calculated by multiplying its internal energy by the product of its pressure and volume. In the equation H = U + pV, U stands for internal energy, p for pressure, and V for system volume; pV is also frequently referred to as the pressure energy P.

The amount of heat in a system under constant pressure is measured as enthalpy (H). Chemists frequently gauge how the enthalpy of chemical systems changes when reactants transform into products. The enthalpy change, which is the same thing as the heat that is absorbed or released by a process at constant pressure, is denoted by the letter H.

To learn more about enthalpy from the given link:

brainly.com/question/3393755

#SPJ4

7 0
1 year ago
During which event does the moon appear closer? Select one: a. Apogee b. Penumbra c. Perigee d. Umbra
Elden [556K]

Answer:

Perigee

Explanation:

In Perigee, The moon appears closer.

5 0
2 years ago
Other questions:
  • Which of the following is NOT true in a solution?
    5·1 answer
  • Express the following answers with the correct number of significant figures.<br> 3.582 ÷ 0.0131
    5·1 answer
  • Which of the following pairs would have the greatest coulombic attraction in a solid compound? 1. mg2+, S2- 2. mg2+, se2- 3.mg2+
    7·1 answer
  • Which state has a tundra and sub-arctic climate? a. Alaska c. North Dakota b. Montana d. None of the above Please select the bes
    12·2 answers
  • How many liters of hydrogen gas are needed to react completely with 50.0 L of chlorine gas at STP ?
    15·1 answer
  • What is it with the name Sara these days!? XD
    9·1 answer
  • How many electron domains does IF4+ have?
    13·1 answer
  • The by-product of the chlorination of an alkane is​
    9·1 answer
  • Dribbling a basketball harder into the floor makes it bounce higher is an example of what newton's law?
    12·1 answer
  • Help me with this question please
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!