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
FinnZ [79.3K]
3 years ago
8

What is the coefficient of MnO2when you balance the equation for this redox reaction? KCN( aq) + KMnO4( aq) + H2O( l) → KCNO( aq

) + MnO2( s) + KOH( aq)
Chemistry
1 answer:
chubhunter [2.5K]3 years ago
8 0

Answer:

2MnO2 (s)

Explanation:

3KCN(aq) + 2KMnO4(aq) + 1H2O(l) → 3KCNO(aq) + 2MnO2(s) + 2KOH(aq)

Reactants:

K: 5

C: 3

N: 3

Mn: 2

O: 9

H: 2

Products:

K: 5

C: 3

N: 3

Mn: 2

O: 9

H: 2

You might be interested in
If the amount of gas and volume are constant and you double the temperature of the gas, pressure halves
Lapatulllka [165]

Explanation:

if we fix the temperature, we are just left with PV = constant for the gas law. So, in this situation, if the volume is doubled, the pressure must go down by one-half. And vice-versa. The simplest illustration of this would be a cylinder with a plunger on one end: if you push the plunger in so that the volume of the cylinder is halved and the temperature remains constant, then the pressure will double.

7 0
3 years ago
An organism making an identical copy of itself is what type of reproduction?​
zhannawk [14.2K]

Answer:

asexual reproduction

Explanation:

some multicellular organisms also reproduce by producing genetically identical clones of themselves. any form of reproduction that results in new individuals that are genetically identical is called asexual reproduction

7 0
3 years ago
Read 2 more answers
A chemist needs 1.36 mol of strontium bromide, SrBr2, for a reaction. What mass of strontium chloride should the chemist use?
yaroslaw [1]
Mass SrBr2 = 247.42 g/mol x 1.36 mol 
<span>= 336 g</span>
5 0
3 years ago
Read 2 more answers
PLEASE HELP!!
sp2606 [1]
Inbox me for the answer

6 0
3 years ago
Calculate the number of grams of carbon found in a 5 mole sample of carbon.
Ksenya-84 [330]

Answer:

60g

Explanation:

1mol of carbon has 12g

3 0
3 years ago
Other questions:
  • Consider this reaction: 2al(s) + 3 cucl2(aq) → 2alcl3(aq) + 3 cu(s) if the concentration of cucl2 drops from 1.000 m to 0.655 m
    13·1 answer
  • Calculate the atmospheric pressure if the boiling point of water is 81 degrees Celsius.
    15·1 answer
  • Example of exothermic reaction:
    7·1 answer
  • Which of the following is not part of Dalton's atomic theory?
    11·2 answers
  • A pile of marbles weigh 394.80 g. 10 marbles weigh<br>37.60 g. How many marbles are in the pile?​
    10·1 answer
  • Is anyone else gender fluid and/or bi and have parent who dont accept them? Or anypart of LGBTQ+ honestly?
    14·2 answers
  • An alkaline battery produces electrical energy according to this balanced equation:
    15·1 answer
  • HNO3(aq)+H2S(s)&gt; Ss)+ NO(g)+H2O(l)
    5·1 answer
  • Hydrochloric Acid would best be described as a:
    14·1 answer
  • A 10.4 g sample of CaSO4 is found to contain 3.06 g of Ca and 4.89 g of O. Find the mass of sulfur in a sample of CaSO4 with a m
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!