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
strojnjashka [21]
3 years ago
9

How many moles of electrons are required to reduce one mole of MnO4- to one mole of Mn2+? (2 points)

Chemistry
1 answer:
Dafna1 [17]3 years ago
8 0
The answer would be 6 e-. This is becuase you are turning a charge of -4 into a +2. In order to do this, you transfer 4 electrons for a neutral charge, and an additional 2 for a charge of +2.

This makes a total charge of +2, and the total transferred electrons 6 e-
You might be interested in
How many bonds are broken in 2O2
nirvana33 [79]

Answer:

c5mvmifvidvj8dvj9r kf9,g

8 0
3 years ago
competed in a track meet and you run the 1500m race in 403 s. what was your average speed in miles per hour
laila [671]

Answer:

403 Seconds in Minutes is about 6 minutes.

Explanation:

Now, because I don't know if you're labeling your 1500 as meters or miles, I'm assuming it's miles.

I'm going to take a gander at your question.

Since you're technically going so fast for some odd reason.

Your answer should most definitely be 403 MPH

6 0
3 years ago
In step 2, of the experiment, the procedure uses 3.0M NaOH. However, the student notices that the only solution of NaOH is conce
Luda [366]

Answer:

We need 78.9 mL of the 19.0 M NaOH solution

Explanation:

Step 1: Data given

Molarity of the original NaOH solution = 19.0 M

Molarity of the NaOH solution we want to prepare = 3.0 M

Volume of the NaOH solution we want to prepare = 500 mL = 0.500 L

Step 2: Calculate volume of the 19.0 M NaOH solution needed

C1*V1 = C2*V2

⇒with C1 = the concentration of the original NaOH solution = 19.0 M

⇒with V1 = the volume of the original NaOH solution = TO BE DETERMINED

⇒with C2 = the concentration of the NaOH solution we want to prepare = 3.0 M

⇒with V2 = the volume  of the NaOH solution we want to prepare = 500 mL = 0.500 L

19.0 M * V2 = 3.0 M * 0.500 L

V2 = (3.0 M * 0.500L) / 19.0 M

V2 = 0.0789 L

We need 0.0789 L

This is 0.0789 * 10^3 mL = 78.9 mL

We need 78.9 mL of the 19.0 M NaOH solution

8 0
3 years ago
14. The following are a list of the four parts of John Dalton's atomic theory Indicate which of
Damm [24]

Answer:

1

all matter is made of tiny particles called atom

5 0
3 years ago
A geologist measures the height of a mountain.the height is 5.3489km what is the height in meters write your answer in decimal
Xelga [282]

Height of a mountain is 5348.9 meter.

1 kilometer is equal to 1000 meter.

The meter, symbol m, is the primary unit of period in the international system of gadgets, although its prefixed paperwork also are used relatively regularly.

A meter is a general metric unit identical to about three feet 3 inches. This means that a meter is part of the metric gadget of dimension. Guitars, baseball bats, and backyard sticks are examples of items which might be approximately one meter lengthy. Meters also are used to measure distances in races, inclusive of strolling and swimming.

Meter readings tell power suppliers how a lot gasoline and energy you are the use of. In case you do not give your provider meter readings they may have to guess your usage. You typically turn out to be paying too much or too little while this occurs.

Learn more about meter here:- brainly.com/question/218459

#SPJ9

7 0
1 year ago
Other questions:
  • If you combine Ammonia and Baking Soda, would you get a neutral solution? Why or why not?
    7·1 answer
  • The process of cellular respiration, which converts simple sugars such as glucose into CO2 and water, is an example of _____. Se
    10·1 answer
  • Vanillin, C8H8O3, is the active ingredient in vanilla flavoring. It contains a six-membered aromatic ring with an aldehyde group
    13·1 answer
  • plate tectonics is a widely accepted theory due to the amount of evidence for it. list four pieces of evidence. plz help!!!!!
    12·1 answer
  • A student is curious about the Ksp value for NaCl. The student looks up the value om the appendix of his textbook but cannot fin
    15·1 answer
  • Which principles help geologists compare the timing of the origin of life forms and the timing of their extinction?
    13·2 answers
  • What knowledge is radiometric dating based upon? A. the rate of decay for certain isotopes B. the name of the rocks C. the weigh
    15·2 answers
  • Question 19 Unsaved
    15·1 answer
  • PLEASE HELP ME WITH THIS I ONLY HAVE 8 MINUTES I will give you extra points . NUMBER 6
    10·2 answers
  • Why are no flying dinosaur fossils found in rocks that are younger than those
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!