Correct Answer: D. expand their operations

Explanation

Free entry and exit are economic terms used to describe the condition of a free market economic Free entry is a condition in which sellers can freely enter the market with its product to make sales. Free exit occurs when a firm can leave the market without limit when economic losses are being incurred. Firms tend to expand in their operations as they grow, the concept of free entry and exit avails them the opportunity of entering and leaving a market at will.

Explanation

(a)(i) Allotropes of sulphur prismatic / monoclinic; Rhombic sulphur. Also plastic/amorphous sulphurs.

(ii) When H\(_2\)S is bubbled through acidified KMnO\(_4\), the solution turns from purple to colourless / is decolourised with yellow deposit of sulphur. H\(_2\)S is a reducing agent. It reduces manganese from oxidation state of + 7 to +2 and itself oxidized to sulphur.

(iii) The products are sulphur and water

(b)(i) The raw materials for the manufacture of H\(_2\)SO\(_4\) are sulphur air / oxygen.

(ii) The equation of the reaction that requires a catalyst in the contact process is 2SO\(_2\) + O\(_2\) -> 2SO\(_3\). The catalyst used is V\(_2\)O\(_5\) (vanadium (V) oxide)

(iii) with copper turnings a blue solution and a gas (with irritating smell) are observed. Products are CuSO\(_4\), SO\(_2\) and water - with a cube of sugar, a black mass of carbon is obtained.

(c)(i) Uses of Na\(_2\)CO\(_3\)

- As a water softener

- In glass / paper manufacture

- As analytical reagent, or specific reaction.

(ii) Na\(_2\)CO\(_3\).

Exposure

10H\(_2\)O \(\to\) Na\(_2\)CO\(_3\) . H\(_2\)O + 9H\(_2\)O. This equation illustrates efflorescence in air

in air

(iii) Solubility calculation. Mass of salt per 20cm of saturated solution = 1.75g 1000cm\(^3\) of saturated solution contains

\(\frac{1000 x 1.75g}{20}\) = 87.5g

molar mass of Na\(_2\)CO\(_3\) = (2 x 23) + 12 + (3 x 16) = 106g

Solubility of Na\(_2\)CO\(_3\) = 87.5

= 0.825 mol /dm\(^{-3}\)

Explanation

(A) JAMES' ARGUMENT ON FAITH WITHOUT WORKS IS DEAD (JAMES 1:22-27; 2:14-26)

i. James advised Christians to live according to the word of the Lord which they had heard.

ii. He said it would be no use to hear the word and fail to put it into practice.

iii. According to James, if anyone is a hearer of the word and not a doer, he is like someone who sees himself in a mirror and turns away and immediately forgets himself.

iv. James points out that he who observes the perfect law of liberty and perseveres in it by acting and not only being a hearer would be blessed in his doing.

v. According to James, God's blessing comes through works and not faith.

vi. James was of the opinion that if one thinks he is religious but does not bridle his tongue, he deceives his heart and his religion is vain.

vii. He held the view that practical and unidentified religion before God entails the visitation of orphans and widows in their affliction.

viii. And also keeping oneself unstained from the world.

ix. James said it is of no use to say you have faith but have no works to demonstrate the faith you have.

x. He taught that faith must be combined with practical works to produce the desired results.

xi. According to James, if someone was poorly clothed and hungry and you asked him to go in peace and be filled without providing the clothes and food for them, you are not backing your faith with works.

xii. Hence, faith without works is dead and useless.

xiii. He asserted that it is not enough to believe in God.

xiv. Belief in the only true. God is good, for even the devil also believes in God, but does not do the will of Him. Hence, faith in God without works is unacceptable.

xv. James cited two Old Testament figures who exhibited faith and works in unison. For example, Abraham justified his faith by works when he was prepared to sacrifice his son Isaac.

xvi. According to James, faith is justified by works; hence, Abraham believed in God and it was counted to him as righteousness and he was called a friend of God because he acted on his faith.

xvii. A person is therefore justified by works and not by faith alone.

xviii. Similarly, Rahab, the prostitute justified her faith by works when she received the messengers of Joshua and sent them out by another way.

xix. James concluded by saying that as the body without the spirit is dead so also faith without works is dead.

xx. Faith should manifest itself in the love of God and service to humankind and not the mere expression of it by words alone.

(B) BENEFITS OF FAITH TO A CHRISTIAN

i. Faith helps Christians to believe and trust God/have fellowship with Him.

ii. It enables Christians to be committed to God/depend and rely on Him.

iii. It assures Christians of eternal salvation.

iv. It shows that Christians are not under law but under grace.

v. It is by faith that Christians face life's challenges with courage and strength, e.g. persecution.

vi. Faith motivates Christians to do good works in all fields, e.g. Education, Medicare, Evangelism, caring for the poor and the needy.

vii. It enables believers to have hope/grow spiritually/keep God's commandments.

viii. It promotes healing/it is a factor in receiving miracles.

Correct Answer: (a) Pride

Correct Answer: A. invalidate the actions of the other arms

Correct Answer: B. marrying many foreign women who came with their gods to Israel

Correct Answer: D. encouraged

Correct Answer: C) dissolves when it absorbs moistures

Explanation

Hygroscopicity is a property of substances that enables them to absorb moisture from the air. This means that if a substance is hygroscopic, it can absorb water vapour from the atmosphere. The question is asking us to identify what it means for a substance to be hygroscopic. From the options given, option C is correct. A substance is said to be hygroscopic if it dissolves when it absorbs moisture.

Hygroscopic substances are commonly used as drying agents or desiccants due to their ability to absorb moisture. Examples of hygroscopic substances include calcium chloride, silica gel, and concentrated sulfuric acid. When these substances are exposed to air, they can absorb moisture and become wet. This property is useful in many different industrial and scientific applications, including the manufacture of pharmaceuticals and the storage of electronic components.

Option A, which states that a substance that is hygroscopic does not absorb moisture, is incorrect. Option B, which states that a substance that is hygroscopic is suspended in water, is also incorrect. Option D, which states that a substance that is hygroscopic hydrolyzes in water, is incorrect as well.

In summary, a substance is said to be hygroscopic if it dissolves when it absorbs moisture. This property is useful in many different applications and is exhibited by certain substances such as calcium chloride, silica gel, and concentrated sulfuric acid.

Correct Answer: c. speedometer

Correct Answer: B. similar vowel sounds are repeated in a sentence or line of poetry