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
zhannawk [14.2K]
3 years ago
12

How many moles are present in a 24.5 gram sample of K2Cr2O7?

Chemistry
1 answer:
attashe74 [19]3 years ago
6 0
The answer to this is solved through stochiometry: the answer is  this: 0.0833mol

You might be interested in
What are the best topics to write a project work on EVS and Chemistry​
professor190 [17]

Answer:

It is better to do chemistry

Explanation:

So that you will learn more of chemicals

6 0
3 years ago
A tissue that has the ability to contract is
bonufazy [111]
Muscle tissue

Explanation: Muscle tissue is a soft tissue that makes up most of the tissues in the muscles of the human muscular system. It is the only type of tissue that has cells with the ability to contract. Skeletal muscle tissue is attached to bones by tendons.
8 0
3 years ago
Read 2 more answers
CH3CI, CF4, HCI, NH3 which would have the lowest boiling point
Sergio [31]

Boiling point of a compound is determined by the strength of intermolecular forces of attraction between the molecules present in it. Stronger the intermolecular forces of attraction, higher will be the boiling point.

Ionic compounds show ion-ion interactions which are the strongest among all. Ion-dipole interactions are shown when ionic solutes are dissolved in polar solvents. Hydrogen bonding is also a relatively stronger force that is present between H atom and an electronegative atom like F, O and N(NH_{3}) . All polar molecules show dipole-dipole interaction (CH_{3}Cland HCl). Dispersion forces are the weakest intermolecular forces due to momentary dipoles between electron clouds and nucleus.

Among the given compounds, CF_{4}has dispersion forces as the major intermolecular forces of attraction. So they they exhibit the weakest IMF, hence have the lowest boiling point.

6 0
3 years ago
Read 2 more answers
When reacting 45g of magnesium with oxygen, 50.0g of magnesium oxide is produced. Calculate the theoretical yield and percent yi
Veseljchak [2.6K]
Hope you are able to get it :)

5 0
3 years ago
Describe two ways oil enters the environment.
soldier1979 [14.2K]

Answer:

In fact, there are actually several ways crude or refined oil may reach the marine environment. ... Use or consumption of oil (which includes operational discharges from ships and discharges from land-based sources): 37% Transportation (accidental spills from ships): 12% Extraction: 3% :))

3 0
2 years ago
Other questions:
  • H-1
    10·2 answers
  • Ag2S + Al(s) = Al2S3 + Ag(s) (unbalanced)
    14·1 answer
  • You are given a cube with the length of 2.5 cm , a width of 2.5 cm , and a height of 2.5 cm. You place it on the scale, and its
    13·1 answer
  • Which gases are responsible for global warming?
    8·1 answer
  • Question 4
    14·1 answer
  • 2. A destructive, rotating column of air that has very high wind speeds and that is sometimes visible
    15·2 answers
  • Can someone explain how my teacher got that result in acceleration
    5·2 answers
  • Which statements about a sodium atom (22/11 Na ), are correct?
    14·1 answer
  • Conner is testing the pH of a swimming pool and he finds it to be 6.5. Optimal pH for swimming is between 7.0 and 7.6.
    8·1 answer
  • 1. How is a bicycle race like a chemical reaction? The Tour de France is one of the most famous bicycle races in the world. It i
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!