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(a)Oxygen
(b)$HCL{(aq)}+2HOCL{(aq)}\rightarrow 3HCL{(aq)}+O_{2(g)}$
(c)Photochemical
isaacmuthini answered the question on November 23, 2017 at 06:43
- The diagram below shows a set-up which was used by a student to investigate the effect of electricity on molten lead (ii)bromide before and after...(Solved)
The diagram below shows a set-up which was used by a student to investigate the effect of electricity on molten lead (ii)bromide before and after heating the lead (II)bromide
(a)On heating lead (II) bromide,the bulb lit brightly.Before heating,the bulb did not light.
Explain
(b)Write ionic equations to show the reaction taking place on lead(II) bromide
(i)At the anode
(ii)At the cathode
(c)State and explain one important precaution that this student should have taken while performing this
experiment
Date posted: November 23, 2017. Answers (1)
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The diagram below represents a chromatogram of different pigments of leaf extract
(a)Name a suitable solvent for the dye.
(b)State with a reason,the least soluble pigment in the solvent used.
Date posted: November 22, 2017. Answers (1)
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(Solved)
The table below shows PH values of solutions A,B,C and D
(a)Which solution Produces bubbles of a gas with zinc metal?Explain
(b)Which solution is the most likely to that of wood ash
Date posted: November 22, 2017. Answers (1)
- 1.2 liters of hydrogen gas produced at room temperature and pressure when 3.27 g of zinc was used.Determine the...(Solved)
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Date posted: November 22, 2017. Answers (1)
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Study the flow chart below and answer questions that follow.
(a)Identify the following;
solid T
Gas L
(b)Describe how process V is carried out.
Date posted: November 22, 2017. Answers (1)
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Study the set up below and answer the questions that follow;
(a)Identify gas D
(b)Write an equation for the reaction taking place
In the combustion tube
Date posted: November 22, 2017. Answers (1)
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The diagram below represents a burning jiko.
(a)Write down the equation for the reactions taking place at;
A.........................
B.........................
(b)Why is it dangerous to use a jiko in a closed room
Date posted: November 22, 2017. Answers (1)
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State and explain the observations that would be made when the circuit is completed.
Date posted: November 22, 2017. Answers (1)
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(a)Name solid X
(b)State the process taking place in chamber C
Date posted: November 22, 2017. Answers (1)
- Below is an ionic electronic structure of element X.(Solved)
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Write down the:
(i)Period in which X belong
(ii)Formula of its chloride
Date posted: November 22, 2017. Answers (1)
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Study the flow chart below and answer the questions that follow
(a)Name substances:
(i)P
(ii)colourless gas
(b)Write balanced stoichiometric equation for the reaction:
(i)Thermal decomposition of P
(ii)Producing coloourless solution S
(c)Write the ionic equations for the formation of Solid P
(d)Name process B
Date posted: November 22, 2017. Answers (1)
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Date posted: November 21, 2017. Answers (1)
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Date posted: November 20, 2017. Answers (1)
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Date posted: November 20, 2017. Answers (1)
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Date posted: November 20, 2017. Answers (1)
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Date posted: November 19, 2017. Answers (1)
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Date posted: November 18, 2017. Answers (1)
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Date posted: November 18, 2017. Answers (1)
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Date posted: November 18, 2017. Answers (1)