exam 2 reaction types

a battery is attached to two test tubes filled with water and connected by a salt bridge. after adding an electric current, a gas formed above each test tube. One gas created a small explosion when exposed to a burning flame, and the other gas reignited a flowing splint. What is the equation and what type is it?

2H2O (l) → 2H2 (g)+ O2 (g) - decomposition

upon adding a strip of silver colored Al (s) to a blue soliton of CuCl2 (aq) a colorless solution and a spongy red-brown precipitate is formed. What is the equation and what type is it?

2 Al (s) + 3 CuCl2 (aq) → 2AlCl3 (aq) + 3Cu (s) - single replacement

upon mixing two colorless solutions Pb(NO3)2 (aq) and KI (aq) a yellow solid and a colorless solution formed. What is the equation and what type is it?

Pb(NO3)2 (aq) + 2KI (aq) → PbI2 (s) + 2KNO3 (aq) - double replacement

solid sodium metal is exposed to green chlorine gas, cl2. the resulting reaction releases light and produces a white solid that conducts electricity when added to water

2Na(s) + Cl2 (g) → 2 NaCl (s) - synthesis

what is the magnesium and air equation and what type is it

2 Mg (s) + O2 (g) → 2MgO (s) - synthesis

what is the magnesium/ air product and water equation and what type is it

MgO (s) + H2O (l) → Mg(OH)2 (aq) - synthesis

what is the sodium hydrogen carbonate reaction and what type is it

2NaHCO3 (s) → Na2CO3 (s) + H2O (l) + CO2(g) - decomposition

what is the hydrogen peroxide reaction and what type is it

2H2O2 (aq) → 2H2O (l) + O2 (g) - decomposition

what is the silver nitrate and copper reaction and what type is it

2Ag(NO3) (aq) + Cu (s) → 2Ag (s) + Cu(NO3)2 (aq) - single replacement

what is the hydrochloric acid and zinc reaction and what type is it

Zn (s) + 2HCl (aq) → H2 (g) + ZnCl2 (aq) - single replacement

what is the sodium carbonate and calcium nitrate reaction

Na2CO3 (aq) + Ca(NO3)2 (aq) → 2NaNO3 (aq) + CaCO3 (s) double replacement and precipitate

what is the sodium hydroxide and copper (II) sulfate reaction

2Na(OH) (aq) + Cu(SO4) (aq) → Na2(SO4) (aq) + Cu(OH)2 (s) - double replacement and precipitate