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
Irina18 [472]
3 years ago
14

Complete and balance the following redox reaction in basic solution

Chemistry
1 answer:
inn [45]3 years ago
8 0

Answer:

balanced in ACID not BASE

Cr2O7^2-(aq) +3Hg(l) +14 H^1+ ----> 3Hg^2+ + 2Cr^3+(aq) + 7H2O

Answer

Cr2O7^2-(aq) +3Hg(l) +14 H^1+ ----> 3Hg^2+ + 2Cr^3+(aq) + 7H2O

Explanation:

Cr2O7^2-(aq) + Hg(l) ----> Hg^2+(aqH) + Cr^3+(aq)

add H^1+ (acid) to capture the O and make 7 water molecules

Cr2O7^2-(aq) + Hg(l) + H^1+ ----> Hg^2+(aqH) + Cr^3+(aq) + 7H2O

Cr goes from +6 to +3 by gaining 3 e

Hg goes from 0 to +2 by losing 2 e

we need 3 Hg for every 2 Cr

so

Cr2O7^2-(aq) +3Hg(l) +14 H^1+ ----> 3Hg^2+ + 2Cr^3+(aq) + 7H2O

2 Cr on the right and left

Net 12 positive charges on the right and the left

3 Hg on the right and left

14 H on the right and left

the equation is balanced

we cannot balance the equation in a basic solution with OH^1-

we have plenty of O in the dichromate ion. we need to convert it to water which take free H^1+ from the acid

You might be interested in
Find the mass of 1 atom of Chlorine in gram.
vazorg [7]
B. 35.45 ! Hope this helps
6 0
3 years ago
Elements in what family are all gases?
Alina [70]

Answer:

Noble gases.

Good Luck & Have a good day!

(.❛ ᴗ ❛.)

6 0
3 years ago
MMMMMM! Dinner's cooking. Soon we'll be eating some chicken and dumplings. Our digestive system will get to work on the food we
scoundrel [369]

Explanation:

Small intestine.

The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine, and push the mixture forward for further digestion. The walls of the small intestine absorb water and the digested nutrients into your bloodstream.

Idk..if there is any other system that works....

Hope it helps really..

3 0
3 years ago
How many grams of aluminum are needed to completely react with<br> 192 g of oxygen gas?
OleMash [197]

Answer:

4.28g

Explanation:

6 0
3 years ago
Compound w , c6h13cl, undergoes base-promoted e2 elimination to give a single c6h12 alkene, y. compound x, c6h13br, undergoes a
CaHeK987 [17]
<span>Answer: W must be 5-chloro-2-methylpentane. It can give only 4-methy-1-pentene (Y) upon dehydrohalogenation: X must be 4-chloro-2-methylpentane. Dehydrohalogenation yields both Y and 4-methyl-2-pentene. (Z)</span>
5 0
3 years ago
Other questions:
  • The mass number of an atom is equal to which of the following?
    9·1 answer
  • How does concentration affect reaction rate
    11·2 answers
  • What structures are found in plant cells that are not what structures are found in plant cells that are not me found in animal c
    11·1 answer
  • Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 moles of aluminum sulfate, al2(so4)3. express the nu
    15·2 answers
  • 1. What is the name of the covalent compound CCl4?2. What is the name of the covalent compound N2O5?
    10·2 answers
  • q=mcΔT. Given this equation find the change in temperature. q = 600 J, m= 25.0 g, c= 0.897 J/g°C. What is ΔT?
    14·1 answer
  • If it takes 54ml of 0.1 m naoh to neutralize 125 ml of a hcl solution with unknown concentration, what is the concentration of t
    13·1 answer
  • Calculate the concentration of OH in a solution that contains 3.9 10-4 M H30 at 25°C. Identify the solution as acidic, basic or
    5·1 answer
  • How many atoms does theobromine have
    13·1 answer
  • Give examples of how land resources are used in a city setting
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!