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
EastWind [94]
3 years ago
8

Which half-reaction correctly represents reduction?

Chemistry
1 answer:
Neko [114]3 years ago
5 0

Answer: B. Ca2+   +  2e- --------->   Ca

Explanation:

Reduction involves the gaining of electrons as well as a decrease in the oxidation state of the atom or ion.

In this case; Ca2+ gains two electrons and the oxidation state is reduced from +2 to  0.

Ca2+   +  2e- --------->   Ca

You might be interested in
If a helium balloon breaks loose, it rises into the atmosphere and at some point bursts. Why
Mashutka [201]

Answer:

Explanation:By the time, that the balloon got too high in the sky, the pressure inside the balloon will soon overcome the pressure outside, and the balloon's elasticity is not too strong to hold the air inside, that the Helium gas inside will successfully push out the walls of the balloon and so it bursts!

8 0
3 years ago
Which concept describes the formation of four equivalent, single, covalent bonds by carbon in its compounds that resembles metha
Montano1993 [528]
Carbon is special and unique because it is able to form different compounds with a lot of elements, including itself. When it bonds with itself, this is possible because of the concept of hybridization. It is the mixing of atomic orbitals into a new hybrid orbital. In this case, methane is formed through the sp³ hybridization.
4 0
3 years ago
NH4NO3 mc018-1.jpg N2O + 2H2O A chemist who is performing this reaction starts with 160.1 g of NH4NO3. The molar mass of NH4NO3
Ray Of Light [21]
36.02g of h2o is produced
7 0
4 years ago
How many of NaOH are in 381 grams of NaOH?
zysi [14]

Answer:

Disnt make sense show me question

3 0
3 years ago
The crucial difference between relative dating and absolute dating is that
Gwar [14]

Answer:c

I need at least 20 characters to post

8 0
4 years ago
Read 2 more answers
Other questions:
  • How many atoms of aluminum (Al) are in 2.15 mol of aluminum? answer in units of atoms.
    6·2 answers
  • Determine the rate of a reaction that follows the rate law rate = k a m b i where
    13·1 answer
  • What happens to rocks fragments and other materials carried by water
    6·1 answer
  • Solve the problem for the moles of oxygen.<br> mol O2<br> DONE
    7·1 answer
  • When two immiscible liquids are mixed, what physical property determines which solvent layer will be on top?
    8·1 answer
  • Which example best demonstrates Charles’s law?
    15·2 answers
  • What is an ion? Write its types with example. ​
    10·2 answers
  • What 3 variables were changed in the pendulum experiment?
    14·1 answer
  • What is a chemical treatment process used to remove dissolved ionic species from contaminated aqueous streams?
    8·1 answer
  • Consider the combustion of methane, CH4 :
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!