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
Xelga [282]
2 years ago
13

#1: The following reaction occurs in a voltaic cell: Cu2+ + Zn --> Zn2+ + Cu. Which of the following reactions occurs at the

anode?
A. Cu2+ + Zn --> Zn2+ + 2e-

B. Cu2+ + 2e- --> Cu

C. Zn --> Zn2+ + 2e-

D. Cu2+ + 2e- --> Zn2+ + Cu
Chemistry
1 answer:
Rudiy272 years ago
5 0
In a voltaic cell there are two electrodes: anode and cathode.

On the cathode, the reaction that occurs is reduction, which means that the metal gains electrons.

On the anode the reaction is oxidation, which means that the metal loses electrons.

In this voltaic cell the reaction on the anode is:

Zn --> Zn 2+  + 2e-, i.e. option C.

Answer: option C.
You might be interested in
Entropy change in an internally reversible isothermal process is _______ to the temperature of the system.
alukav5142 [94]

Answer:

Internally reversible is the answer.

Explanation:

3 0
2 years ago
What conclusion can she make from her experiment?
pishuonlain [190]

Answer:

hii samyy

Explanation:

nice killua profile pic :))

5 0
2 years ago
Read 2 more answers
For the reaction CO2(g) + H2(g)CO(g) + H20(g)
Studentka2010 [4]

Answer:

The ΔG° is 29 kJ and the reaction is favored towards reactant.

Explanation:

Based on the given information, the ΔH°rxn or enthalpy change is 41.2 kJ, the ΔS°rxn or change in entropy is 42.1 J/K or 42.1 * 10⁻³ kJ/K. The temperature given is 289 K. Now the Gibbs Free energy change can be calculated by using the formula,  

ΔG° = ΔH°rxn - TΔS°rxn

= 41.2 kJ - 289 K × 42.1 × 10⁻³ kJ/K

= 41.2 kJ - 12.2 kJ

= 29 kJ

As ΔG° of the reaction is positive, therefore, the reaction is favored towards reactant.  

5 0
2 years ago
Elemental exonium (not a real element) consists of two major isotopes abundance mass 18% 98 amu 82% 112 amu what is the atomic w
pishuonlain [190]
In general chemistry, isotopes are a group of substances that belong to the same element. An element is characterized in the periodic table by their atomic number, which is the number of protons in an atom. Therefore, these substances have the same atomic numbers, but differ in mass numbers. Mass number is the sum of the number of protons and neutrons in the nucleus of an atom. 

To determine the atomic weight of an element, you take the average weight of all the existent isotopes of that said element. The calculation would require to multiply the exact mass of the isotope to its abundance. Then, sum them all up.

Atomic weight = 98(0.18) + 112(0.82)
Atomic weight = 109.48 amu
3 0
2 years ago
Terry, a student, performs a titration. He completes these steps as part of his titration procedure: 1. He cleans and rinses a b
Contact [7]

Answer:

D

Explanation:

D is the answer because 2 is needed to know

6 0
2 years ago
Read 2 more answers
Other questions:
  • A volatile liquid is one that ______?
    13·1 answer
  • Which of the following fractions can be used in the conversion of 1500 dm3 to cm3? (2 points) fraction cubed: ten to the negativ
    10·1 answer
  • How could you determine which household substances are acids, bases, or neutral substances?​
    11·1 answer
  • The fish died after living in the aquarium for many years
    10·1 answer
  • One symptom of carbon monoxide poisoning is the development of Mees lines on the fingernails and toenails.
    13·2 answers
  • How does atomic radius change from left to right across a period in the periodic table?
    5·2 answers
  • How do you write a balanced equation for the combustion<br> ofbenzene?
    14·1 answer
  • How do jet streamsinfluence the weather?
    6·2 answers
  • Examine the reaction.
    8·1 answer
  • Why does shampoo remove hair grese for chemistry acids and alkali
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!