Formulae, equations and hazards

Question 1

In a laboratory preparation of chlorine gas, solid potassium dichromate(VI) ( $K2Cr2O7\text{K}_2\text{Cr}_2\text{O}_7$ ) reacts with concentrated hydrochloric acid ( $HCl\text{HCl}$ ) to form potassium chloride ( $KCl\text{KCl}$ ), chromium(III) chloride ( $CrCl3\text{CrCl}_3$ ), chlorine gas ( $Cl2\text{Cl}_2$ ), and water ( $H2O\text{H}_2\text{O}$ ).

Write the balanced chemical equation for this reaction.

[3]

Formulae, equations and hazards

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Question 1

In a laboratory preparation of chlorine gas, solid potassium dichromate(VI) ( $K2Cr2O7\text{K}_2\text{Cr}_2\text{O}_7$ ) reacts with concentrated hydrochloric acid ( $HCl\text{HCl}$ ) to form potassium chloride ( $KCl\text{KCl}$ ), chromium(III) chloride ( $CrCl3\text{CrCl}_3$ ), chlorine gas ( $Cl2\text{Cl}_2$ ), and water ( $H2O\text{H}_2\text{O}$ ).

Write the balanced chemical equation for this reaction.

[3]

Formulae, equations and hazards

Question 1

Formulae, equations and hazards Questions

Formulae, equations and hazards

Question 1

Formulae, equations and hazards Questions