The scheme below shows some reaction sequence starting with solid N.
(a) Identify solid N
(b) Write the formula of the complex ion present in solution Q (Answered)
Distinguish between a strong and a weak acid. Give an example of each. (Answered)
A sample of water drawn from a river passing through an agricultural district was divided into two portions. The first portion gave a white precipitate when acidified barium chloride was added. The second portion when warmed with aqueous sodium hydroxide gave a colourless gas which turned a moist red litmus paper blue.
(a) Identify the ions present in the river water.
(b) Suggest the possible (Answered)
Study the information in the table and answer the question below the table.
Describe how a solid sample of substance A could be obtained from a solid mixture of A and B (Answered)
(a) Give the formula of an oxide which reacts with both dilute hydrochloric acid and hot concentrated sodium hydroxide
(b) Give the formulae of the products formed when oxide in (a) above reacts with excess hot concentrated sodium hydroxide (Answered)
#90cm^3# of 0.01M calcium hydroxide were added to a sample of water containing 0.001 moles of calcium hydrogen carbonate.
(a) Write an equation for the reaction which took place
(b) Calculate the number of moles of calcium ions in #90cm^3# of 0.01M calcium hydroxide. (Answered)
What would be observed if soap solution was added dropwise to a sample of the water after the addition of the calcium hydroxide? Give a reason. (Answered)
Explain the process of law making in Kenya. (Answered)
Identify reforms which have been carried out in the police force. (Answered)
What are the functions of the Speaker of the National Assembly? (Answered)
Identify challenges faced in giving Kenyans a new constitution. (Answered)
Explain how the bill of rights in the Kenyan constitution protects the rights of an individual. (Answered)
Identify five values of good citizenship. (Answered)
Explain the problems faced by Kenyan nationalists in their struggle for independence. (Answered)
Discuss the role of women in the struggle for independence in Kenya. (Answered)
Explain the ways which the colonial government used to acquire labour for settlers in Kenya. (Answered)
Outline the terms of the Devonshire White Paper. (Answered)
Explain ways in which Seyyid Said promoted trade between the East African Coast and the outside world during the 19th century (Answered)
What were the reasons for the coming of the Arabs to the East African Coast up to 1500 AD? (Answered)
Explain the results of the migration of the River-Lake Nilotes. (Answered)
Trace the pattern of the migration of the River-Lake Nilotes (Answered)
State two occasions when the President always attends the National Assembly (Answered)
State two ways in which one becomes a member of a country government (Answered)
Who was responsible for the promotion of African education in Kenya during colonial period? (Answered)
State two features of the political organizations which were formed in Kenya before 1939. (Answered)
Why were Africans not allowed to grow cash crops during the colonial period? (Answered)
Identify one institution which advised the governor in Kenya in the administration of the colony during the early 20th century. (Answered)
Mention two types of political elections held in Kenya. (Answered)
Identify one newspaper which published African grievances up to 1943. (Answered)
What were the reasons for the construction of Kenya-Uganda railway? (Answered)
Name one Agiriama leader who led resistance against the British. (Answered)
What powers were given to Imperial British East Africa Company under the Charter of 1888? (Answered)
Identify two reasons which led to the decline of the long distance trade. (Answered)
State two functions of the council of elders in Kenyan societies up to 19th century. (Answered)
Why are the Luo, Maasai and Kalenjins referred to as Nilotic Speakers? (Answered)
What was the basis of the political organization of African communities in Kenya before the colonial rule? (Answered)
Study the scheme below and answer the questions that follows.
(a) Write the formula of the cation present in solution F.
(b) What property of chlorine is shown in step I.
(c) Write an equation for the reaction which occur in step III. (Answered)
In an equation below, identify the reagent that acts as a base. Give a reason (Answered)
Study the chart below and answer the questions that follow:
(a) Identify:
(i) The metal ions in solution K
(ii) The white precipitate L
(b) What property of the white precipitate L is illustrated by step I and II? (Answered)
Explain the following observation. Chloride dissolves in water to form an electrolyte while the same chloride dissolves in methylbenzene to form a non-electrolyte. (Answered)
The table shows how solubility of some substances in water varies with temperature.
Which of the above substances is likely to be a gas? Explain. (Answered)
in an experiment, soap solution was added to three separate samples of water. The table below shows the volumes of the soap solutions required to form lather with #1000cm^3# of each sample of water before and after boiling.
a) Which water sample is likely to be soft? Explain.
(b) Name the cause of change in the volume of soap solution used in sample III (Answered)
Explain why significantly increasing the blood PH slows down the rate of selective reabsorption of materials in the kidney tubules. (Answered)
In investigating a certain physiological process, students set up the apparatus as shown below and made the observations after 30 minutes as illustrated.
(a) Name the physiological process being investigated.
(b) Account for the observation made at the end of the experiment.
(c) State the likely identity of G. (Answered)
Explain why transfusion with distilled water is not recommended for a dehydrated patient. (Answered)
The diagram below illustrates the appearance of a plant cell after it had been put in a certain solution.
(a) Explain the appearance of the cell at the end of the treatment.
(b) Explain the results obtained if a red blood cell is subjected to the same treatment (Answered)
Explain the physiological process responsible for keeping young seedlings upright. (Answered)
The set up below illustrate a certain physiological process.
(a) (i) Name the physiological process
(ii) Give two examples of the process named in (a) (i) above in plants.
(b) State two ways by which the movement of dye molecules in the set up would be slowed down. (Answered)
Students set up an experiment as illustrated below.
(a) Name the physiological process that resulted in the observation made after 30 minutes.
(b) State the importance of the physiological process investigated in plants.
(c) Explain the observation made after 30 minutes. (Answered)
Discuss the problems that Daniel Arap Moi faced as the Chief Executive of Kenya. (Answered)