MediumChemistryHigh School (9–10)GeneralThe Periodic Table › Groups and FamiliesConceptual

Will a reaction take place? If it does, write the products.

Try it on paper first. A hint, the key idea and the worked solution are here when you need them.

$\text{Cl}_2$ and NaI solution. (b) $\text{I}_2$ and NaCl solution. (c) $\text{Br}_2$ and $\text{CaCl}_2$ solution. (d) $\text{Cl}_2$ and $\text{MgBr}_2$ solution. (e) $\text{Br}_2$ and NaBr solution.

Need a reminder? The key ideaShow

Group 1 metals are soft, have one outer electron and react with water to give hydrogen and an alkali; reactivity rises down the group. Group 2 metals are harder and less reactive. Halogens, group 17, get darker and less reactive down the group, and a more reactive halogen displaces a less reactive one. Noble gases have full shells.

The worked solution

Have you tried it?

Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.

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