1. Define what a half-life is and give an example.

The time which is required for the radioactive elements to reduce the half of its initial quantity as well a mass is known as the half Life. Half-life is also denoted by the symbol of  Half-life explains about how the stable atom could exist as well as in what way the unstable atom undergoes the radioactive decays.

Example of half-life

2.      Explain where and why equilibrium lies if k >>1

When the lies if k >>1 it means that the product is favored over the reactants.  The concentration of the product at the equilibrium is higher as compared to the reactants like in below graph

Whereas every reactant and the particle of molecule goes to the product, but only for those that get the activation energy and it could move forward as well as it gives the product. Hence for the  by the small concentration of the reactant molecules the equilibrium exists.

3.      Explain where and how commercial oxygen is produced.

By using the Vacuum swings adsorption process as well as cryogenic distillation, the separation of the air is the most common methods for producing the oxygen.

As a result of the chemical reaction, the oxygen is also produced, in which the oxygen is the freed from the compound of chemical as well as it becomes the gas. This method is also used to generate the quantities of the oxygen for the life support on the submarines, spacecraft’s, as well as aircraft

4. List and define the inter-molecular forces

·       Describe the compounds that form between non-metals

6.      Explain what a dipole moment is?

The dipole moment is the measurement for the separation of the two opposite electrical charges. Whereas the dipole moment is the vector quantity, and the magnitude is equal to the multiple charged through a distance among a direction of charges form the positive charges to the negative charges. There will be a larger dipole moment if the difference of the electromagnetically is larger. The measure of the polarity of a molecule is the dipole moment.

7.      . Compare and contrast oxidation and reduction

Oxidation: Oxidation is the reaction which occurs when there is no donor of the electron, that is the molecule, and it will also give the electron to another source. Due to the donate of electrons, which is given in the oxygen atom, then the electron donors are oxidized.

During the reaction when the reactant loses an electron, the oxidation occurs;

 Mg undergoes the oxidation

Reduction: The reduction reaction occurs when the accept-or of the electron is presented, that is the molecule which takes the electron from another source. The accept or of the electron is reduced due to through gaining an electron which also reduced the overall variations as well as it creates the more negative.

During the reaction when the reactant gains an electron, the reduction occurs;

S undergoes the reduction

8. Describe graphite as a compound

Graphite is the crystalline forces of the carbon which is also represented by the symbol of C. Each carbon atom is bonded to the three carbon atoms in the graphite, and these three bonded by another three as well as so on. It forms the hexagonal structure;

Their layer can easily slip over each other because it is slippery material.

And it is also allot ropy of carbon

9. Explain what beta decay is and give an example

Beta-decay are two types;

·         Beta positive decay

·         Beta negative decay

In the daughter of nucleus form reaction when the antineutrino, as well as the electron, is produced is known as the beta negative decay;

In the daughter nucleus form reaction when the neutrino, as well as an electron with the positive charges, are produced is known as the beta positive decay;