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
KonstantinChe [14]
3 years ago
7

Copper is plated on zinc by immersing a piece of zinc into a solution containing copper(II) ions. In the plating reaction, coppe

r II ions: a) gain two electrons and is are reduced. b) lose two electrons and is are oxidized. c) gain two electrons and is are oxidized. d)lose two electrons and is are reduced.
Chemistry
1 answer:
Aloiza [94]3 years ago
8 0

Hey there!:

Copper plating on Zinc will occur via this simple reaction:

Cu²⁺   +   2 e⁻   ⇌   Cu

When a species gains electron, it is reduced. Its oxidation state is decreased. For example, in the above reaction Cu2+ gained 2 electron to get reduced to Cu. Its oxidation state changed from +2 to 0. Hence it is a reduction reaction.

So, the correct answer is  :

The copper II ions  gain two electrons and are reduced.

Answer B

Hope this helps!

You might be interested in
What were the names of the minerals and types of rocks?
padilas [110]
Types of rocks: Igneous, sedimentary, and metamorphic
There are over 200 names of minerals, I'm not sure what you want for that
8 0
2 years ago
Read 2 more answers
What is it??!!!!!??!??!?
Softa [21]

Answer:

other the effect of temperature on plants

4 0
2 years ago
Propane is used as a fuel source on many barbeque grills. What is undergoing reduction during the burning of propane while grill
Anni [7]

Answer:

Oxygen

Explanation:

because oxygen is used when making and sustaining a fire.

I think this seems like something is missing from the question

8 0
1 year ago
If 7.4 moles of carbon dioxide is produced in this reaction, how many moles of oxygen gas would be needed?
Nimfa-mama [501]

Answer:

11.6 mol O₂

Explanation:

  • C₇H₁₆ + 11 O₂ → 7 CO₂ + 8 H₂O

In order to solve this problem we need to <u>convert moles of carbon dioxide (CO₂) into moles of oxygen gas (O₂)</u>. To do so we'll use a conversion factor containing the <em>stoichiometric coefficients</em> of the balanced reaction:

  • 7.4 mol CO₂ * \frac{11molO_2}{7molCO_2} = 11.6 mol O₂
4 0
2 years ago
The figure above shows the basic concepts of cell division
Cerrena [4.2K]
A. DNA is copied. 
- The cell duplicates its DNA in order to have a complete set in eac cell when it divides.

6 0
3 years ago
Other questions:
  • What element has the electrons configuration of [Ar]4s^2 3d^5
    14·1 answer
  • In 1897, Joseph Thomson discovered that atoms contained electrons. He proposed a change in the atomic theory of that time, and t
    12·1 answer
  • According to the law of conservation of matter, which statement about chemical reactions is true?
    14·1 answer
  • Select the correct empirical formula for each molecular formula given.
    5·1 answer
  • Which is an acid-conjugate base pair?
    11·2 answers
  • He electrostatic attraction between positively charged nuclei and negatively charged electrons permits two atoms to be held toge
    9·1 answer
  • ¿Cuál es la diferencia entre energía térmica y energía eléctrica?
    6·1 answer
  • When a predator population increases what happens to the prey population? Increase Decrease Dies Stays the same
    9·1 answer
  • A cheetah has been clocked at 112 km/h over a 100-m distance. What is this speed in m/s?
    15·1 answer
  • Darwin observed __________________ types of mockingbirds and finches lived in different island environments.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!