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Anestetic [448]
2 years ago
14

Describe the scale used to measure the basicity of a substance. Demonstrate how you could differentiate a weak base from a stron

g one
Chemistry
1 answer:
Katena32 [7]2 years ago
3 0

Explanation:

You can determine the basicity of a substance by pH or pOH. The higher the pH, the stronger base a substance has. As for pOH, it is the exact opposite.

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Consider the equilibrium reaction. 2 A + B − ⇀ ↽ − 4 C After multiplying the reaction by a factor of 2, what is the new equilibr
vredina [299]

Answer : The correct expression for equilibrium constant will be:

K_c=\frac{[C]^8}{[A]^4[B]^2}

Explanation :

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.

As we know that the concentrations of pure solids and liquids are constant that is they do not change. Thus, they are not included in the equilibrium expression.

The given equilibrium reaction is,

4A+2B\rightleftharpoons 8C

The expression of K_c will be,

K_c=\frac{[C]^8}{[A]^4[B]^2}

Therefore, the correct expression for equilibrium constant will be, K_c=\frac{[C]^8}{[A]^4[B]^2}

4 0
3 years ago
Complete the table to summarize the properties of the different subatomic particles. Type in your answers.
Aloiza [94]

<h2>Complete the table to summarize the properties of the different subatomic particles. </h2>

Explanation:

Atom

It is a smallest particle which cant exist independently.

According To Dalton, atom was indivisible but later on, it was proved that atom can be subdivided into sub atomic particles called electron, proton & neutron.

These subatomic particles have marked properties .

Proton

  • It was discovered by E.Goldstein .
  • It is positively charged particle
  • It is present in nucleus .
  • Its mass is equal to 1.6726219 × 10⁻²⁷ kilograms

Neutron

  • It was discovered by E.chadwick .
  • It is neutral
  • It is present inside the nucleus .
  • It's mass is equal to 1.674927471×10⁻²⁷ kg

Electron

  • It was discovered by J.J Thomson .
  • It has negative charge .
  • It's mass is equal to 9.10938356 × 10⁻³¹ kilograms
  • It is present outside the nucleus in shells .
4 0
3 years ago
Read 2 more answers
Which type of cell junctions allow cellular communication?
Otrada [13]

Answer:

Explanation:

Communicating junctions or gap juctions consider direct substance correspondence between contiguous cell cytoplasm through dispersion without contact with the extracellular liquid.

6 0
3 years ago
Carbon hexafluroide formula
ikadub [295]

The formula for Hexafluoride is F6S.

4 0
3 years ago
What is the proper value for D in the above table.<br> A. 65<br> B. 35<br> C. 30<br> D. 63
Zolol [24]

Answer:

65

Explanation:

Atomic Number, Protons, and Neutrons are always of the same amount.

5 0
3 years ago
Read 2 more answers
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