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
Rufina [12.5K]
4 years ago
8

Orbitals which valence electrons are found for calcium

Chemistry
1 answer:
galina1969 [7]4 years ago
8 0
The 4th energy level (row), 's' orbital block, 2nd group (column). The valence electrons are found in the highest energy level of the electron configuration in the 's' and 'p' orbitals. In the case of calcium this is 4s2 . This gives calcium an 's' orbital with a pair of electrons in its valence shell
You might be interested in
Help me!
AnnZ [28]

Answer:

a

Explanation:

a is the answer i too

k the test

4 0
3 years ago
Read 2 more answers
Question 5 options: The cell potential for an electrochemical cell with a Zn, Zn2 half-cell and an Al, Al3 half-cell is _____ V.
Mashcka [7]

Answer:

The voltage is  E_{cell} =  0.944 \ V

Explanation:

Generally the half reaction for Zn, Zn2 half-cell is mathematically represented as

    Zn_{(s)}   ⇔   Zn^{2+}_{ (aq)} + 2e^-    (reference study academy)

and the electric potential for this is a constant value

     E_{zn } =  -0.7618 \ V

Generally the half reaction for Al, Al3 half-cell is mathematically represented as

      Al^{3+}  _{(aq)} + 3e^-  ⇔  Al_{(s)}

and the electric potential for this is constant value  

       E_{Al  } =  -1.662 \ V

Therefore the cell potential for an electrochemical cell  is mathematically represented as

          E_{cell} =  E_{zn }  -  E_{Al }

substituting values

         E_{cell} =  -0.718  - (-1.662)

        E_{cell} =  0.944 \ V

 

4 0
3 years ago
Answer the following questions about the fermentation of glucose (C6H12O6, molar mass 180.2 g/mol)
Yuri [45]

The amount of energy in kilocalories released from 49 g of glucose given the data is -4.4 Kcal

How to determine the mole of glucose

Mass of glucose = 49 g

Molar mass of glucose = 180.2 g/mol

Mole of glucose = ?

Mole = mass / molar mass

Mole of glucose = 49 / 180.2

Mole of glucose = 0.272 mole

How to determine the energy released

C₆H₁₂O₆ →2C₂H₆O + 2CO₂  ΔH = -16 kcal/mol

From the balanced equation above,

1 mole of glucose released -16 kcal of energy

Therefore,

0.272 mole of glucose will release = 0.272 × -16 = -4.4 Kcal

Thus, -4.4 Kcal were released from the reaction

Learn more about stoichiometry:

brainly.com/question/14735801

#SPJ1

6 0
2 years ago
Which cell living organism are diploid
Vera_Pavlovna [14]

Question

<em>which cell living organism are diploid?</em>

Answer:

<em>Ploidy is the area of biology that refers to the number of chromosomes in a cell. Therefore, cells with two sets are diploid, and those with one set are haploid. In diploid organisms, such as humans, the haploid cells are used only for the sex cells for reproduction, while the rest of the cells are diploid.</em>

Hope this helps!


7 0
3 years ago
Read 2 more answers
PLZ HELP!!! ILL MARK BRAINLIEST!!! Would you consider the practice of "ghost hunting” to be closer to science or pseudoscience,
mariarad [96]

Answer:

Pseudoscience

Explanation:

Ghosts don't exist.

3 0
3 years ago
Other questions:
  • Which of the following shows the correct setup in converting 234 kilopascals to torr?
    14·1 answer
  • Choose the aqueous solution with the highest vapor pressure. These are all solutions of nonvolatile solutes and you should assum
    8·2 answers
  • Convert a volume of 2250cm3 to cubic meters
    10·2 answers
  • How do air masses interact to form a cyclone?
    8·2 answers
  • What is the mass of 1.88 mol Na
    6·2 answers
  • Describe four ways you could increase the rate of a chemical reaction.
    5·2 answers
  • One atom has 11 protons and 13 neutrons. Another has 11 protons and 12 neutrons. Are they the same or different elements? Explai
    11·1 answer
  • 5)
    6·1 answer
  • PLS HELP ILL GIVE BRAINLIEST
    6·1 answer
  • The speed of a car is 16 meters per second. What is this speed in miles per hour? What is
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!