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(i) P – Haxane
(ii) W – Water
maurice.mutuku answered the question on October 11, 2019 at 07:37
- The diagram below shows three methods for collecting gases in the laboratory(Solved)
The diagram below shows three methods for collecting gases in the laboratory
(a) Name the methods A and B
(b) From the methods above, identify one that is suitable for collecting sulphur (IV) oxide.
Explain
Date posted: October 11, 2019. Answers (1)
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Date posted: October 11, 2019. Answers (1)
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Date posted: October 11, 2019. Answers (1)
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The diagram below gives the observations that were made(Solved)
Wooden splints F and G were placed in different zones of a Bunsen burner flame.
The diagram below gives the observations that were made
(a) Explain the difference between F and G
(b) Name the type of flame that was used in the above experiment
Date posted: October 11, 2019. Answers (1)
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Date posted: October 1, 2019. Answers (1)
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The set-up below shows the products formed when solid lead (ii) nitrate is heated.
a) Identify:
(i) Liquid X
(ii) Gas Y
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Date posted: October 1, 2019. Answers (1)
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The following diagram shows the effect of electric current on lead (II) Chloride.
a) When the circuit was completed no current flowed. Explain why.
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Date posted: October 1, 2019. Answers (1)
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Explain using chemical means how you would differentiate between carbon (II) oxide and carbon (IV) oxide.
Date posted: October 1, 2019. Answers (1)
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Study the table below and answer the questions that follow.
a) Define the term ‘ionization energy’
b) Explain the trend in the ionization energy from element K to T
c) Compare the trend in the melting and boiling points of elements K and T.
Date posted: October 1, 2019. Answers (1)
- The diagram below shows the effect of sunlight on chlorine water(Solved)
The diagram below shows the effect of sunlight on chlorine water.
a) Identify gas W
b) Write an equation to show the formation of gas W
c) Which compound is left in the beaker after complete formation of gas W?
Date posted: October 1, 2019. Answers (1)
- Study the flow chart below and answer the questions that follow.(Solved)
Study the flow chart below and answer the questions that follow.
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c) Write an equation to show the formation of G and J
Date posted: October 1, 2019. Answers (1)
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Form two students from Anestar Premier High School reacted three elements as shown in the table below.
Which element (s) is likely to be:
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ii) Metal (s)
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Date posted: October 1, 2019. Answers (1)
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Date posted: October 1, 2019. Answers (1)
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What volume of oxygen will be required for complete combustion of 100cm3 of carbon (II) oxide. What is the volume of the product formed (All volumes at same temperature and pressure
Date posted: October 1, 2019. Answers (1)
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Date posted: October 1, 2019. Answers (1)
- A compound of carbon, hydrogen and oxygen contains 71.12g by mass of oxygen, 2.2g hydrogen and the rest is carbon. It has relative molecular mass...(Solved)
A compound of carbon, hydrogen and oxygen contains 71.12g by mass of oxygen, 2.2g hydrogen and the rest is carbon. It has relative molecular mass of 90.
a) Determine the empirical formula of the compound
b) Determine the molecular formula of the compound
Date posted: October 1, 2019. Answers (1)
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Study the flow chart below and answer the questions that follow.
a) Identify the metal oxide.
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c) Give the formula of the ions responsible for the colourless solution Y.
Date posted: October 1, 2019. Answers (1)
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The diagram below shows Chromatograms for five different dyes.
a) Name one condition required to separate the chromatograms present in a dye.
b) What is meant by the solvent front? .
c) Which chromatograms are present in dye E.
d) Name two industrial applications of chromatography
Date posted: October 1, 2019. Answers (1)
- The diagrams below show some physical methods of separating mixtures.(Solved)
The diagrams below show some physical methods of separating mixtures.
Name the methods of separation labeled W, X and Y
Date posted: October 1, 2019. Answers (1)