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
anzhelika [568]
3 years ago
15

HELP ASAP!!!!!!!!

Chemistry
1 answer:
Irina-Kira [14]3 years ago
4 0
Answer is: <span>c. 80 g of Br2.
</span>1) n(Li) = 14 g ÷ 7 g/mol
n(Li) = 2 mol.
N(Li) = 2 mol · 6·10²³ 1/mol.
N(Li) = 1,2·10²⁴.
2) n(He) = 4 g ÷ 4 g/mol.
n(He) = 1 mol.
N(He) = 1 mol · 6·10²³ 1/mol.
N(He) = 6·10²³.
3) n(Br₂) = 80 g ÷ 160 g/mol.
n(Br₂) = 0,5 mol.
N(Br₂) = 0,5 mol · 6·10²³ 1/mol.
N(Br₂) = 3·10²³.
4) n(H₂) = 4 g ÷ 2 g/mol = 2 mol.
N(H₂) = 1,2·10²⁴.
You might be interested in
?cual es el tiempo de<br>onda con 6<br>oscilaciones.?​
Setler79 [48]

Answer:

Hey hi

Explanation:

Can you pls tell me which language is this.... Pls really sorry... I wanna help you

7 0
3 years ago
If you go from the Earth to the Moon, will your MASS change?
Solnce55 [7]

Answer:

No matter if you are on Earth, the moon or just chilling in space, your mass does not change. But your weight depends on the gravity force; you would weigh less on the moon than on Earth, and in space you would weigh almost nothing at all.

8 0
3 years ago
Read 2 more answers
Which of the following ions has a pseudo-noble-gas electron configuration?
Darya [45]

Answer:A pseudo-noble gas configuration is: 1s2 2s2 2p6 3s2 3p6 3d10. Cu^+ has this electron configuration.  The answer is C)

Explanation:

3 0
3 years ago
Read 2 more answers
When 25.0 grams of FeO react with 25.0 grams of Al, how many grams of Fe can be produced?
densk [106]

Answer: 77.7g

Explanation:Please see attachment for explanation

4 0
3 years ago
What will happen if a candle will be covered with an inverted jar filled will nitrogen
exis [7]

Answer:

The flame will burn out

Explanation:

The oxygen will be kept out of the jar, without oxygen the flame cannot last long. The flame will eventually burn out. Nitrogen gas has no role to play in the burning. Nitrogen slows down the burning rate.

8 0
3 years ago
Other questions:
  • 1) Which of the following is the best example of a physical change?
    11·1 answer
  • Carbon-14 is an isotope used in carbon dating. The nucleus becomes Nitrogen-14 through beta decay. Its half-life is 5370 years.
    12·1 answer
  • Amoebas live all their lives:​
    12·1 answer
  • Which is the most valid reason a group of people might oppose the storage of spent fuel rods in their community?
    10·2 answers
  • 13 This word describes the circulatory system that provides nutrients and oxygen to living cells of the body.
    7·1 answer
  • A sample of an unknown metal has a mass of 58.932g. it has been heated to 101.00 degrees C, then dropped quickly into 45.20 mL o
    11·1 answer
  • How many grams of AgCl are produced from 10.0 g AgNO3?
    11·1 answer
  • Oxidation number of Al(OH)4
    10·1 answer
  • Tell me What is an element?
    6·1 answer
  • Which is true of oxidation
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!