i) U,V,Y,Z
ii) YZ
maurice.mutuku answered the question on November 7, 2019 at 05:22
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Study the nuclear reactions given and answer the questions that follow:
(a) Write an equation for the nuclear reaction in step II
(b) Give one use of Y
Date posted: November 6, 2019. Answers (1)
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(a) How many protons does X have?
(b) How many neutrons does Y have?
Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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Nuclide Y emits a beta particle to form substance Z. Write down nuclear equations...(Solved)
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Nuclide Y emits a beta particle to form substance Z. Write down nuclear equations to show how
substance Y and Z are formed (U=At No. 92)
Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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are two types of cleansing agents;
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Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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Find the initial mass of...(Solved)
Y grams of a radioactive isotope take 120days to decay to 3.5grams. The half-life period of the isotope is 20 days.
Find the initial mass of the isotope
Date posted: November 6, 2019. Answers (1)
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They belong to two different homologous series of organic compounds. If both A...(Solved)
Substances A and B are represented by the formulae ROH and RCOOH respectively.
They belong to two different homologous series of organic compounds. If both A and B
react with potassium metal:
(a) Name the common product produced by both
(b) State the observation made when each of the samples A and B are reacted with sodium hydrogen carbonate
(i) A
(ii) B
Date posted: November 6, 2019. Answers (1)
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The scheme below shows some reactions starting with ethanol. Study it and answer the questions that follow:-
Date posted: November 6, 2019. Answers (1)
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(b) Draw the structure and give the name of the organic compound formed when ethanol reacts with pentanoic acid...(Solved)
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Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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(b) Calculate the maximum mass of ammonium nitrate that can be...(Solved)
a) Write an equation showing how ammonium nitrate may be prepared starting with ammonia gas
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Date posted: November 6, 2019. Answers (1)
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(a) Identify substances A and B
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Date posted: November 6, 2019. Answers (1)
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The structure below represents a cleansing agent.
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Date posted: November 6, 2019. Answers (1)
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Date posted: November 6, 2019. Answers (1)
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Study the scheme given below and answer the questions that follow;
i) Name the reagents used in:
Step I:
Step II
Step III
ii) Write an equation to show products formed for the complete combustion of CH = CH
iii) Explain one disadvantage of continued use of items made form the compound formed in step III
Date posted: November 6, 2019. Answers (1)