Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your chemical equation is balanced and has physical state symbols.situation chemical reaction? chemical equationA strip of solid magnesium metal is put into a beaker of 0.045M Pb(NO3)2 solution. yesnoA strip of solid lead metal is put into a beaker of 0.087M Mg(NO3)2 solution. yesno
Question
Decide whether a chemical reaction happens in either of the following situations. If a reaction does happen, write the chemical equation for it. Be sure your chemical equation is balanced and has physical state symbols.situation chemical reaction? chemical equationA strip of solid magnesium metal is put into a beaker of 0.045M Pb(NO3)2 solution. yesnoA strip of solid lead metal is put into a beaker of 0.087M Mg(NO3)2 solution. yesno
Solution
Situation 1: A strip of solid magnesium metal is put into a beaker of 0.045M Pb(NO3)2 solution.
In this situation, a chemical reaction does occur. This is a single replacement reaction where magnesium displaces lead in the lead nitrate solution. The chemical equation for this reaction is:
Mg(s) + Pb(NO3)2(aq) -> Mg(NO3)2(aq) + Pb(s)
This equation is already balanced and includes the physical state symbols.
Situation 2: A strip of solid lead metal is put into a beaker of 0.087M Mg(NO3)2 solution.
In this situation, no chemical reaction occurs. This is because lead is less reactive than magnesium, so it cannot displace magnesium in the magnesium nitrate solution. Therefore, there is no chemical equation to write for this situation.
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