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How many energy levels does sulfur have?
A. 2
B. 3
C. 4
D. 14

Answers

Answer 1
Answer: Sulfur has 3 energy levels. 
Answer 2
Answer:

Answer:

3

Explanation:


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What is the pH of a solution with [H+] = 1.25 mc015-1.jpg 10–10 M?

Answers

Answer : The pH of a solution is, 9.903

Explanation : Given,

Concentration of hydrogen ion = 1.25* 10^(-10)M

pH : It is defined as the negative logarithm of hydrogen ion concentration.

Formula used :

pH=-\log [H^+]

Now put the value of hydrogen ion concentration in this formula, we get the pH of a solution.

pH=-\log (1.25* 10^(-10))

pH=9.903

Therefore, the pH of a solution is, 9.903

[ H+]=10-pH
it become
[H+]=0.1

When elements that form a mineral dissolve in hot water, they form a mixture called a(n) ______.?

Answers

Soluble materials when put in a hot water would dissolve.

What is the temperature of the oceanic crust?

Answers

The temperature of the oceanic crust increases with depth, reaching values typically in the range from about 500 °C(900 °F) to 1,000 °C (1,800 °F) at the boundary with the underlying mantle.

Which is the electron configuration for zinc? A. 1s₂2s₂2p₆3s₂3p₆3d84s₂ B. 1s₂2s₂2p₆3s₂3p₆3d₁₀4s₁ C. 1s₂2s₂2p₅3s₂3p₆3d₁₀4s₂ D. 1s₂2s₂2p₆3s₂3p₆3d₁₀4s₂

Answers

Answer:

Explanation:

The atomic number of zinc is 30, which means that the neutral atom has equal numbers of protons and electrons, so a neutral atom of zinc would have 30 electrons.

The electron configuration of a neutral zinc atom is 1s

2

2s

2

2p

6

3s

2

3p

6

3d

10

4s

2

.

The Zn

2+

 ion has lost two electrons, which leaves it with 30 protons and 28 electrons.

The electron configuration of Zn

2+

 is 1s

2

2s

2

2p

6

3s

2

3p

6

3d

10

.

The basic points in Lewis and Langmuir theory of electrovalency

Answers

The correct answer for the question that is being presented above is this one: "Electrovalency is characterized with the transferring of one or more electrons from one atom to another together with the formation of ions and as well as the number of positive and negative charges. 

The Lewis and Langmuir theory of electrovalency (and as well as Kossel's) is dealing with Ionic bonds. 

Lewis: electron-pair sharing, octet rule, Lewis Symbols or StructureLangmuir: introduced term "covalent" bond, and popularized Lewis's ideas

The Lewis-Langmuir electron-pair or covalent bond is referred as the homopolar bond, where the complete transfer of electrons give rise to ionic, or electrovalent bond (1) through attraction of opposite charges.

A body of mass 5kg has momentum of 125kgm/s. find the velocity of the body in motion.

Answers

Explanation:We have momemtum = mass X velocity

    p = mv

    OR, p/m = v

    v = (125kg m/s)25kg

    v = 125/25 m/s

       v = 5 m/s