Acids and Redox - exam practice

HClO

Mg(OH)₂

Na₂SO₄

NH₄Cl

-2

-1

+1

+2

MgO_(s) + 2HCl_(aq) ➔ MgCl_2(s) + H₂O_(l)

MgO_(s) + 2HCl_(aq) ➔ MgCl_2(aq) + H₂O_(l)

MgO_(s) + 2HCl_(l) ➔ MgCl_2(s) + H₂O_(l)

MgO_(s) + 2HCl_(l) ➔ MgCl_2(aq) + H₂O_(l)

Ca_(s) + 2HCl_(aq) ➔ CaCl_2(aq) + H_2(g)

H⁺_(aq) + OH^-_(aq) ➔ H₂O_(l)

K₂CO_3(s) + 2HNO_3(aq) ➔ 2KNO_3(aq) + H₂O_(l) + CO_2(g)

NH_3(aq) + HCl_(aq) ➔ NH₄Cl_(aq)

Cl is both oxidised and reduced

Cl is oxidised and O is reduced

O is both oxidised and reduced

O is oxidised and Cl is reduced

Cl₂ + H₂O ➔ HCl + HClO

2ClO₂ + 2NaOH ➔ NaClO₂ + NaClO₃ + H₂O

4KClO₃ ➔ 3KClO₄ + KCl

MnO₂ + 4HCl ➔ MnCl₂ + Cl₂ + 2H₂O

Cu₂O + H₂SO₄ ➔ CuSO₄ + Cu + H₂O

MgO + 2HCl ➔ MgCl₂ + H₂O

SnCl₂ + HgCl₂ ➔ Hg + SnCl₄

MnO₂ + 4HCl ➔ MnCl₂ + 2H₂O + Cl₂

NO₂⁺

ClO₃^-

H₂SO₃

PCl₅

TiO₂ ➔ TiO₃^2-

Cr₂O₇^2- ➔ CrO₄^2-

MnO₄^2- ➔ MnO₄^-

VO₃^- ➔ VO²⁺

phosphate(III)

phosphate(IV)

phosphate(V)

phosphate(VI)

K₂O₃

K₂O

K₂O₂

KO₂