Examples of double-replacement reaction

Answer 1

Na2SO4 + CaCl2 ----> NaCl + CaSO4

Pb(NO3)2 + KI ----> PbI2 + KNO3

NaOH + CuSO4 ----> Na2SO4 + Cu(OH)2

K2CO3 + FeSO4 ----> K2SO4 + FeCO3

CH3COONa + CuCl2 ----> (CH3COO)2Cu + NaCl

HNO3 (aq) + KOH (aq) ----> H2O (I) + KNO3 (aq)

Ba(OH)2(aq) + 2HCIO4(aq) ----> Ba(CIO4)2(aq) + 2H2O(I)

Answer 2

In double displacement reactions, ions appear to move between compounds, resulting in a solid that settles out of solution, a gas that bubbles out of solution and/or a molecular substance.

Answer 3

The preparation of hydrogen peroxide is a double displacement reaction. ----
Ab+c->ac+b

Answer 4

Single displacement reactions include any metal with an acid. This is because the metal replaces the gas in the acid and the gas is released as a product.

Answer 5

HCl(aq) + NaOH(aq) --> NaCl(aq) + HOH(l)

This is actually a neutralization reaction, where a salt (NaCl) and water (HOH or H2O) is formed.

Answer 6

Pb(NO3)2(aq) + 2KCl (aq) ----------> PbCl2(s) + 2KNO3(s)

Answer 7

BaCl2(Aq) + Na2SO4(Aq) --> BaSO4(s) + 2NaCl(Aq)

Answer 8

Zn (s) + 2HCI (aq)---> H2(g) +ZnCI2 (s)

Answer 9

NaOH+Hcl--->Nacl+H2O

Answer 10

K2CrO4 + BaCl2 -----> BaCrO4 + KCl