(i) PbI2
(ii) Pb2+(aq) + 2I-(aq)------->PbI2(s)
sharon kalunda answered the question on May 22, 2019 at 06:16
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do not represent the actual symbols of the elements.(Solved)
Study the information in the table below and answer the questions that follow. The letters
do not represent the actual symbols of the elements.
(i) Write the formulae of carbonate R and M
(ii) Describe how the carbonate of M can be obtained from a mixture of carbonate R and
M.
(iii) R is more reactive than L. Explain
Date posted: May 22, 2019. Answers (1)
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(a) Name the parts labelled A and B
(b) State the function of...(Solved)
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(a) Name the parts labelled A and B
(b) State the function of the part labeled A.
(c) State the property of the mixture that makes it suitable to be separated by the
method above.
Date posted: May 22, 2019. Answers (1)
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Which sample is likely to be temporary hard water? Explain(Solved)
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Which sample is likely to be temporary hard water? Explain
Date posted: May 22, 2019. Answers (1)
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a) Name the following;
i) Gas L
ii) Gas H
iii) K
b) Name the processes...(Solved)
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a) Name the following;
i) Gas L
ii) Gas H
iii) K
b) Name the processes involved in the following steps
i) Step I
ii) Step II
iii) Step III
c) Write a chemical equation for the complete combustion of substance F
d) Name the condition and reagents in step III
i) Condition
ii) Reagent
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Date posted: May 22, 2019. Answers (1)
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i) Which metal is likely to be Copper. Explain.
ii) Identify the strongest reducing agent.
iii) Which two half – cells would be combined to produce the highest voltage?.
iv) Give a cell representation of the cell in F (iii) above.
Date posted: May 22, 2019. Answers (1)
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Date posted: May 22, 2019. Answers (1)
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i) Select the element in period three which has the shortest atomic radius. Give a reason
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ii) Using dots (.) and crosses (x) to represent outermost electrons, draw a diagram to
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Date posted: May 21, 2019. Answers (1)
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i) Are the members in this group likely to be conductor or non...(Solved)
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Date posted: May 21, 2019. Answers (1)
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A volume of 80cm3 of a mixture of propane (C3H8) and oxygen were ignited in an experiment.The products were cooled and passed through an aqueous sodium hydroxide. The final volume
was reduced by 30cm3
a) Write the equation for the combustion of propane
b) Determine the volume of;
i) The component of the original mixture
ii) Residual oxygen
Date posted: May 21, 2019. Answers (1)
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Date posted: May 21, 2019. Answers (1)
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Date posted: May 21, 2019. Answers (1)
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Date posted: May 21, 2019. Answers (1)
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Date posted: May 21, 2019. Answers (1)
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Date posted: May 21, 2019. Answers (1)
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a) The solubility of the salt
b) The percentage of the salt in the saturated solution(Solved)
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a) The solubility of the salt
b) The percentage of the salt in the saturated solution
Date posted: May 21, 2019. Answers (1)
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The result is shown below;
i) Which ink was contaminated with...(Solved)
Three brands of inks M, N and O were suspected to be contaminated with substance P.
The result is shown below;
i) Which ink was contaminated with substance P
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Date posted: May 21, 2019. Answers (1)
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Date posted: May 21, 2019. Answers (1)
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Complete the table below by stating the effect of equilibrium when the following conditions...(Solved)
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Complete the table below by stating the effect of equilibrium when the following conditions are
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Date posted: May 21, 2019. Answers (1)
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a) Explain why sulphur is soluble in...(Solved)
Sulphur is soluble in ethanol but not in water while common salt is soluble in water but not in
ethanol
a) Explain why sulphur is soluble in ethanol but hot in water.
b) Explain how a pure sample of sodium chloride can be obtained from a mixture of the two.
Date posted: May 21, 2019. Answers (1)