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
mart [117]
3 years ago
5

Balance the following oxidation-reduction reactions, which take place in acidic solution, by using the "half-reaction" method.

Chemistry
1 answer:
LuckyWell [14K]3 years ago
8 0
First identify which is being oxidized and reduced. In this case, the Mg is being oxidized and the Hg is being reduced. 

Mg --> Mg+2 
 
<span>Hg+2 --> Hg+1 
</span>
Then you have to balance each half reaction first with electrons before adding them together in one equation

Mg ⇒ Mg^{+2}  +  2e^{-1}

and

2Hg^{+2} + 2e^{-1} ⇒ Hg_{2} ^{+2}
 
and then combine them together to form 

Mg + 2 Hg^{+2} + 2e ⇒ Mg^{+2} + 2e ^{-} + 2 Hg^{+1} + 2 e^{-}

It isn't necessary to keep the electrons but its essential to know how many there are in order to know how many are in the equation in order to calculate the reaction energy. Note: A<span>dd H+ and H2O to balance the H's and O's in acidic solution if needed.</span>
You might be interested in
A student fails to clean the pipet first. after delivering the vinegar sample, the student notices a drop of vinegar clinging to
VladimirAG [237]
This should not matter because the pipet has gradations and usually more of the sample is taken up in the pipette than what is delivered into the flask the student should always rinse the container being used because they are contaminating the sample if they do not clean it out
4 0
3 years ago
Step 3: Measure the Reaction Rate at 40°C
Anit [1.1K]

Answer: Temperature of the water is 40

Reaction time: 26.3

Explanation: literally just press the tongs in the workslide!

8 0
3 years ago
What is factor that is covered up by another trait Dominant or recessive
Veseljchak [2.6K]

Answer: Recessive

Explanation: The recessive trait is often faded away by the dominant/other

Also looking at the word dominant it means powerful, most important, influential meaning it would most likely overpower

Goodluck :)

7 0
2 years ago
How many molecules of Carbon<br> Dioxide (CO2) are there in 2 CO2?
Dima020 [189]

There are 2 molecules of Carbon dioxide(CO2)

<h3>Further explanation</h3>

Given

Molecules of CO2

Required

The number of molecules

Solution

The coefficient of a molecule shows the number of that molecule, while the subscript after the name of the atom indicates the number of that atom in the molecule

Because there is a coefficient of 2 in front of the CO2 molecule, then the number of CO2 molecules is 2

5 0
2 years ago
Why do lunar and solar eclipses not happen every month?
White raven [17]
A lunar eclipse occurs when The moon’s orbit is tilted five degrees from earth’s orbit around the sun .
5 0
2 years ago
Other questions:
  • A student has a piece of aluminum metal. Which is the most reasonable assumption the student could make about the metal?
    8·2 answers
  • Help? Ill mark you brainliest
    14·1 answer
  • Consider the reaction.
    7·2 answers
  • Why have very few planets with low mass (comparable to mars or mercury) been found?
    10·2 answers
  • What property of radioactive nuclear waste makes it so difficult to dispose responsibility?
    14·1 answer
  • What is the resultant molarity of 20mL of a 3.5M solution is diluted to 100mL? Will mark brainliest
    6·1 answer
  • What is the percent copmosition of chromium in CrF3
    15·1 answer
  • Help please :)<br> Describe two characteristics that protists have that make them eukaryotes.
    13·1 answer
  • How does the ocean<br> currents affect weather?
    8·1 answer
  • A 1.775g sample mixture of potassium hydrogen carbonate is decomposed by heating. if the mass loss is 0.275g what is the percent
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!