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
Verizon [17]
3 years ago
10

For an atom’s electrons, how many energy sublevels are present in the principal energy level n = 4?

Chemistry
2 answers:
ludmilkaskok [199]3 years ago
8 0
You would need to let us know the atomic number first. Sorry.
nignag [31]3 years ago
6 0
S, p, d, and f are possible for n=4

number of possible sublevels =n
You might be interested in
Why does the amount of water that flows in a river change during the year?
Ilya [14]
It might change because of the amout of rain that fell in the year and the melting of ice which allows the water amount to increase
7 0
3 years ago
At what time of the year can the sun be found at the zenith
Step2247 [10]

Answer: The Sun Could Be Seen Once during the year when north of the equator.

3 0
3 years ago
Number of grams of hydrogen than can be prepared from 6.80g of aluminum​
Anastaziya [24]

Answer:

0.7561 g.

Explanation:

  • The hydrogen than can be prepared from Al according to the balanced equation:

<em>2Al + 6HCl → 2AlCl₃ + 3H₂,</em>

It is clear that 2.0 moles of Al react with 6.0 mole of HCl to produce 2.0 moles of AlCl₃ and 3.0 mole of H₂.

  • Firstly, we need to calculate the no. of moles of (6.8 g) of Al:

no. of moles of Al = mass/atomic mass = (6.8 g)/(26.98 g/mol) = 0.252 mol.

<em>Using cross multiplication:</em>

2.0 mol of Al produce → 3.0 mol of H₂, from stichiometry.

0.252 mol of Al need to react → ??? mol of H₂.

∴ the no. of moles of H₂ that can be prepared from 6.80 g of aluminum = (3.0 mol)(0.252 mol)/(2.0 mol) = 0.3781 mol.

  • Now, we can get the mass of H₂ that can be prepared from 6.80 g of aluminum:

mass of H₂ = (no. of moles)(molar mass) = (0.3781 mol)(2.0 g/mol) = 0.7561 g.

5 0
3 years ago
Fill in the blanks. People can identify the _____ of an element by looking at its _____ on the periodic table
Monica [59]
Molecule, formulaaaaaaaaaa
7 0
3 years ago
What is the difference between the formula of magnesium oxide and oxygen?
lianna [129]

Oxygen is an element, symbol O

Magnesium oxide is an ionic compound, formula MgO

6 0
3 years ago
Other questions:
  • How is the atomic theory that is accepted today different from daltons atomic theory?
    9·1 answer
  • Use the periodic table to identify the element with the electron configuration 1s²2s²2p⁴. Write its orbital diagram, and give th
    14·1 answer
  • Why the noble gases are found in small amounts in the earth's atmosphere?
    7·1 answer
  • What volume of so2 is produced at 325 k and 1.35 atm when 15.0 grams of hcl reacts with excess k2so3?
    9·1 answer
  • When coke burns in air then evolved gas is​
    10·1 answer
  • What is the difference between speed and velocity?
    5·1 answer
  • HELP ME PLZ
    5·1 answer
  • 2. What are some common properties of metals, nonmetals, and semimetals?
    15·2 answers
  • Would the size of an item affect whether or not it is flammable?
    12·1 answer
  • Can anyone please help me find molar masses of compounds. For example Copper (ll) sulfate (CuSO4)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!