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
TiliK225 [7]
3 years ago
7

In which main energy level does the 'd' sublevel first appear? K (first main energy level) L (second main energy level) M (third

main energy level) N (fourth main energy level)
Chemistry
1 answer:
RoseWind [281]3 years ago
6 0

Answer:

M (third main energy level)

Explanation:

The third main energy level bears the first appearance of the 'd' sublevel. The principal quantum number(n) depicts the main energy levels in which an orbital is located. It takes values of n=1,2,3,4,5..... and it can be represented by the shells k,l,m,n.......

The subshells in these main orbitals are represented by s,p,d and f. For the K shell, the principal quantum number is m and its sublevel notations are s,p and d. This is where the d-sublevel first appears.

You might be interested in
Part II. Formulas From Names
dybincka [34]

Answer:

CO₂

Explanation:

Carbon dioxide is a covalent compound. Two double bonds are formed between two oxygen atoms and one carbon atom. O=C=O

The covalent bond between them are polar.

Covalent bond:

It is formed by the sharing of electron pair between bonded atoms.  

The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive.

For example:

In carbondioxide the electronegativity of oxygen is 3.44 and carbon is 2.55. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and carbon becomes partial positive.  The electronegativity difference is 0.89 that's why it is polar covalent bond.

5 0
3 years ago
Read 2 more answers
¿En cuáles está presente la química?
Step2247 [10]

Answer:

5

Explanation:

8 0
3 years ago
What do the results tell you about your hypothesis(es)? How do the data support your claim above?
Oliga [24]

Answer: It tells you if your hyposthesis was incorrect or correct from the data. The data supports this because you tested and got your results correctly which will help you to form a hypothesis.

Explanation:

8 0
3 years ago
A total of 25.0 mL of 0.150 M potassium hydroxide (KOH) was required to neutralize 15.0 mL of sulfuric acid (H2SO4) of unknown c
8_murik_8 [283]
For neutralization of acid by a base (or vice versa), the equation should be used.
                          M₁V₁ = M₂V₂
where M's are the molarity and the Vs are the volume. Substituting the known values,
                        (0.150M)(25) = M₂(15 mL)
The value of M₂ from the equation is equal to 0.25M. Thus, the concentration of the acid is 0.25M. 
3 0
3 years ago
A certain chemical reaction releases of heat for each gram of reactant consumed. How can you calculate what mass of reactant wil
WARRIOR [948]

Answer:

Specific heat capacity formula

Explanation:

The heat capacity gives the exact heat energy at which a given mass of a substance is heated from one temperature to another.

This formula can help determine how much heat is gained or lost during the reaction and is given by:

Q = mcΔT

where:

Q = heat energy in Joules or Calories

m - mass of the substance (g)

c = Specific heat capacity (J/kg°C)

ΔT = change in temperature = (final temp - initial temp) (°C)

I hope this was helpful.

3 0
3 years ago
Other questions:
  • A 126-gram sample of titanium metal is heated from 20.0°C to 45.4°C while absorbing 1.68 kJ of heat. What is the specific heat o
    14·1 answer
  • Given the balanced equation representing a reaction:
    7·1 answer
  • Mass defect for oxygen-16 = 0.13261 amu How many kilograms does the mass defect represent?1.66 × 10-27 kg
    11·2 answers
  • When melted iron solidifies without any change in temperature, what is happening on the atomic level?
    14·1 answer
  • What density will an object have if the mass of it ia 46g and it takes up 561 mL of space?​
    8·1 answer
  • What is a mole? List everything you know about the mole.
    10·2 answers
  • Select all that apply.
    7·2 answers
  • Movement of molecules from an area of lower concentration to one of higher concentration with carrier molecules, using energy, i
    5·1 answer
  • Please help me!!!
    6·1 answer
  • What is the elevation of point x on rock mountain ( Ik it's blury but please help for 30 points ) ty
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!