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
saul85 [17]
2 years ago
15

PLS HELP ME, use the periodic table to write the electron configuration of selenium

Chemistry
1 answer:
EastWind [94]2 years ago
6 0

Answer:

[Ar] 3d10 4s2 4p4

Explanation:

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p4

You might be interested in
What is e cell (in units of volts) for a galvanic cell constructed from barium and manganese electrodes?
gulaghasi [49]

Main Answer: The standard electrode potential of galvanic cell constructed from barium and manganese electrode is 4.097.

Explanation:

When the galvanic cell constructed between Manganese and Barium, the half reactions will be as follows:

Mn2+(aq) + 2e-⟶ Mn(s)                                             E1 = −1.185

Ba2+(aq) + 2e-⟶ Ba(s)                                                 E2 = −2.912

By considering the above two reactions, the standard electrode potential can be calculated.

The galvanic cell standard electrode potential is given by E1 + E2 = 1.185 + 2.912 = 4.097 volts

What is standard electrode potential?

Standard electrode potential is defined as the measure of reducing power of any compound or element. Its units are volts.

To know more about galvanic cell, please visit:

brainly.com/question/13031093

#SPJ4

3 0
1 year ago
How many grams of solute are needed to make 2.50 L of a 1.75 M solution of Ba(NO3)2?
Eddi Din [679]

1143.4grams of solute are needed to make 2.50L of a 1.75M solution of Ba(NO3)2. Details about molarity can be found below.

<h3>How to calculate mass?</h3>

The mass of a substance can be calculated by multiplying the number of moles by its molar mass.

However, the number of moles can be calculated by using the following formula:

Molarity = no of moles ÷ volume

no of moles = 1.75 × 2.5

no of moles = 4.38mol

molar mass of Ba(NO3)2 = 261.34g/mol

mass of Ba(NO3)2 = 261.34 × 4.38

mass of Ba(NO3)2 = 1143.4grams.

Therefore, 1143.4grams of solute are needed to make 2.50L of a 1.75M solution of Ba(NO3)2.

Learn more about mass at: brainly.com/question/19694949

3 0
2 years ago
What is the oxidation state of each element in FeBr2?
maxonik [38]
Fe: 2+ 
Br: 1-
Checked on the periodic table
3 0
3 years ago
0.467 mol NaCl are needed to
Alisiya [41]

Answer:

27.4 gram is the solution it's simple dude...

Explanation:

don't be afraid of huge question they confuse you you need not to be confused

now see simple solution

molality is denoted by m

so

m= moles of solute / mass of solvent in kg.

i hope your know the meaning of solute and solvent....

so moles are given 0.467

and molar mass is given 58.44

so just take out the gram means

by applying formula

58.44×0.467

it will give 27.4 grams simple.....

8 0
2 years ago
Plsss helpppp!!!!!!!!!!!!!!!​
daser333 [38]
I can’t see any pictures
8 0
3 years ago
Other questions:
  • A balloon, whose volume at 23°C is 535 mL, is heated to 46°C. Assuming the pressure and amount of gas remain constant, what is t
    5·1 answer
  • The greenhouse effect traps the sun's energy on Earth similar to
    7·2 answers
  • Calculate the number of moles of Cl atoms in 3.01×1024 formula units of magnesium chloride, MgCl2.
    12·2 answers
  • If 6.5 L of water is added to 4.5 L of a 2.8 M Ca(OH)2 solution, what is the molarity of the new solution?
    14·1 answer
  • Free.... f..... r.... e.... e... FREE POINTS! (and brainliest ofc) Alright two more after this guys
    9·2 answers
  • A soild reactant is placed in to a beaker of warm water. The liquid vigorously bubbles as the solid dissolves into the solution.
    7·1 answer
  • Considering the side chain of each of the amino acids at pH 7.4, is that amino acid classified at neutral, basic, or acidic? You
    7·1 answer
  • Carbon monoxide and chlorine gas react to form phosgene:
    13·1 answer
  • 4. Naming Molecules<br> a) Describe how ionic bonds are formed at the atomic level.
    10·1 answer
  • One factor is the ____________ of molecules. The reaction rate is ____________ proportional to the number of molecular _________
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!