BALANCING EQUATIONS Flashcards
1
Q
SOLID SOSIUM + liquid h2o make Hydrogen gas and aqueous sodium hydroxide
A
2Na(s) + 2H2O (l) > H2 (g) + 2NaOH (aq)
2
Q
Gas Evolution Reaction with METAL+ACID = ?GAS?
A
H2 ALWAYS
3
Q
Gas evolving reaction
Carbonate + ACID = ??
CO3 2- + HCl = ??
A
CO2 gas (+ H2O + Salt)
*The acid donates a proton H which strips an O from Carbonate (aq) because CO3 is unstable with 2 extra electrons, CO2 is now a stable compound as a product )
This results in the formation of stable CO2 gas
4
Q
Gas evolution reaction
SulfITE + ACID = ??
SO3 2- + HCl = ??
A
SO2 gas
5
Q
NH4 + STRONG BASE
A
NH3 (g)
