
Concept explainers
a)
Interpretation :
Chemical equation must be written and balanced when gaseous chlorine reacts with aqueous solution of potassium bromide to produce liquid bromine and aqueous solution of potassium chloride.
Concept Introduction :
Chlorine can displace bro mine from its salt is reactivity of chlorine is more than that of bromine.
a)

Answer to Problem 1RQ
Unbalanced and balanced chemical equations are given below.
Explanation of Solution
From the reaction it can be seen that to balance the 2 Cl atoms 2 moles of KCl is required in product side. Then to balance 2 K atoms in product side 2 moles of KBr is required in reactant side. Number of Cl, K and Br atoms are equal in both the sides of the balanced equation.
b)
Interpretation :
Chemical equation must be written and balanced when solid aluminium reacts with solid iodine to produce solid aluminium iodide.
Concept Introduction :
Aluminium is an electropositive metal which can combine with iodine to produce corresponding iodide compound.
b)

Answer to Problem 1RQ
Unbalanced and balanced chemical equations are given below.
Explanation of Solution
From the reaction it can be seen that to balance the 2 Al atoms 2 moles of AlI3 is required in product side. Then to balance 6 I atoms in product side 3 moles of I2 is required in reactant side. Number of Al and I are equal in both the sides of the balanced equation.
Chapter 7 Solutions
World of Chemistry, 3rd edition
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- Which one of the following atoms should have the largest electron affinity? a) b) c) d) 으으 e) 1s² 2s² 2p6 3s¹ 1s² 2s² 2p5 1s² 2s² 2p 3s² 3p² 1s² 2s 2p 3s² 3p6 4s2 3ds 1s² 2s² 2p6arrow_forwardAll of the following are allowed energy levels except _. a) 3f b) 1s c) 3d d) 5p e) 6sarrow_forwardA student wants to make the following product in good yield from a single transformation step, starting from benzene. Add any organic reagents the student is missing on the left-hand side of the arrow, and any addition reagents that are necessary above or below the arrow. If this product can't be made in good yield with a single transformation step, check the box below the drawing area. Note for advanced students: you may assume that an excess of benzene is used as part of the reaction conditions. : ☐ + I X This product can't be made in a single transformation step.arrow_forward
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