Loyal Academy

Explain the following:

Question

i) Silicon has a higher melting point that it is expected ii) Graphite is used as a lubricant as well as a cell electrode by not diamond iii) The first ionization energy of boron is lower than that of beryllium ...

High Schools 4 years 0 Answers 3 views

Basic characters of elements in the modern periodic table always increase down the group. Justify this statement by considering the oxides of group V elements

Question

High Schools 4 years 0 Answers 3 views

Give three (3) diagonal similarities between Be and Al

Question

High Schools 4 years 0 Answers 5 views

What is the advantage of arranging elements in the periodic table on the basis of atomic numbers rather than atomic masses?

Question

High Schools 4 years 0 Answers 6 views

State the periodic law

Question

High Schools, Secondary Schools 4 years 0 Answers 9 views

Briefly explain how an acidic buffer solution works to maintain its pH value when a small amount of acid is added to it.

Question

High Schools 4 years 0 Answers 4 views

For each of the following pairs, write an equation to show how the pair reacts to form a conjugate acid and a conjugate base. For each reaction, identify the acid, base, conjugate acid, and conjugate base

Question

i) Bicarbonate ion and water ii) Ammonia and water iii) Nitrous ion and hydroxonium ion iv) Ammonium ion and carbonate ion

High Schools 4 years 0 Answers 2 views

Briefly explain each of the following observations:

Question

i) Lead (II) chloride is soluble in concentrated HCl solution ii) Aqueous aluminum nitrate solution turns blue litmus paper red

High Schools 4 years 0 Answers 3 views

Define the following:

Question

i) Common ion effect ii) Buffer solutions iii) Ionic product of water iv) Salt hydrolysis

High Schools 4 years 0 Answers 5 views

Distinguish between the following terms:

Question

i) Average rate and instantaneous rate ii) Elementary step and rate-determining step iii) Molecularity and order of reaction iv) Activated complex and activation energy

High Schools 4 years 0 Answers 3 views

1 2 3 4 … 46

Register Now

Login

Lost Password

Add question

Login

Register Now

Chemistry