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Add lead (II) oxide to nitric acid till in excess.
Filter to obtain lead (II) nitrate as filtrate.
Mix filterate with sulphuric acid.
Filter to obtain lead (II) sulphate precipitate.
otienosam answered the question on June 6, 2019 at 12:18
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a) Give the name of the elements represented by the shaded region.
b) Identify an element which form ion with +2 charge.
c) Which non-metal is most reactive ?
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Calculate the enthalpy change for the reaction.
CH4(g) + Cl2(g) ---> CH3Cl(g) +...(Solved)
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 24, 2019. Answers (1)
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c) Give the reagents and...(Solved)
Study the scheme below and answer the questions that follow.
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Step I:
Reagent
Condition
Step II:
Reagent
Condition
Date posted: May 24, 2019. Answers (1)
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ii) a soluble carbonate
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Date posted: May 24, 2019. Answers (1)
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Explain.
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Metal S removes oxygen combined with P. Q reacts with an oxide of R and not with an oxide of P. P reacts with cold water
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i) Which solution is likely to be
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ii) A basic substance V...(Solved)
Below are PH values of some solutions.
i) Which solution is likely to be
I. acidic rain
II. Potassium hydroxide
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iii) Identify two substances that show these characteristics in question (ii) above.
Date posted: May 24, 2019. Answers (1)
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a) Name the process in step 4.
b) What reactant is used to achieve...(Solved)
Study the sequence of reactions below and answer the questions that follow.
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b) What reactant is used to achieve step 4 ?
Date posted: May 24, 2019. Answers (1)
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a) Identify the main impurity...(Solved)
The chief ore of aluminium is bauxite which mainly contains Al2O3.2H2O. The ore is initially purified before aluminium is extracted electrolytically.
a) Identify the main impurity associated with this ore.
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Date posted: May 24, 2019. Answers (1)
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a) State the type of bonding that exist in T.
b) In...(Solved)
The diagram below is a section of a model of the structure of element T.
a) State the type of bonding that exist in T.
b) In which group of the periodic table does element T belong ? Give a reason.
Date posted: May 24, 2019. Answers (1)