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Before comparing simulations of Group 1 metals reacting with water and Group 17 elements reacting with halide ions, a chemistry class uses the periodic table to predict the properties of lithium, sodium, chlorine and bromine.
State what is meant by periodicity.
Explain why metallic character increases from lithium to sodium.
Explain why non-metallic character decreases from chlorine to bromine.
A student compares five oxygen-containing organic compounds used as solvents. Their structural formulae are shown in Figure 1.
Determine the molecular formula shared by compounds A–E.
Identify one pair of position isomers among compounds A–D and explain the structural feature that makes them position isomers.
Identify a pair of primary alcohols in Figure 1 that are straight-chain/branched-chain isomers, and explain the difference in their carbon skeletons.
Classify the relationship between compounds A and E as a type of structural isomerism. Give a structural feature that supports your answer.
State whether compound D is a primary, secondary or tertiary alcohol.
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