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I(a) (i) Atomic radius of M is smaller than that of X. The effective nuclear charger in M is greater than in X hence outer electrons strongly pulled to the centre reducing the radius.
(ii) Radius of Q is greater than that of U because Q has more energy levels than U
(b) J because it loses energy more easily due to the bigger atomic radius of J
marto answered the question on October 1, 2019 at 07:12
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The number of protons, neutrons and electrons in atoms A to F are given in the table below the letters do not represent the actual symbol of the elements:-
Choose from the table the letters that represent:
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(ii) A neutral atom of a non-metal
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(v) A cation
(vi) Anion
Date posted: October 1, 2019. Answers (1)
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(i) Write an equation for the reaction
(ii) State two precautions that must be taken before the combustion begins...(Solved)
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Date posted: October 1, 2019. Answers (1)
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c)...(Solved)
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i) Name Compound T
ii) Gas U
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2 SO2(g) + O2(g)----->2SO3 D = -197 kJ/mol
State two conditions that are necessary for maximum production of SO3.
iv) Name the catalyst used for this reaction.
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Step II
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Step III
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Date posted: September 26, 2019. Answers (1)
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i) State the colour change.
ii) Explain why castor...(Solved)
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Date posted: September 25, 2019. Answers (1)
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Date posted: September 25, 2019. Answers (1)
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Date posted: September 25, 2019. Answers (1)
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Date posted: September 25, 2019. Answers (1)