Balancing Equations Question Preview (ID: 18452)


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____ HCl + ____ CaCO3 →____ CaCl2 + ____H2O + ____ CO2
a) 4 P + 5 O2 →2 P2O5
b) 2 HCl + 1 CaCO3 →1 CaCl2 + 1 H2O + 1 CO2
c) 1 HNO3 + 1 NaHCO3 →1 NaNO3 + 1 H2O + 1 CO2
d) 2 HCl + 1 CaCO3 →1 CaCl2 + 7H2O + 8 CO2

____ NaBr + ____ CaF2 →____ NaF + ____ CaBr2
a) 2 NaBr + 1 CaF2 →2 NaF + 1 CaBr2
b) 2 HCl + 1 CaCO3 →1 CaCl2 + 1 H2O + 1 CO2
c) Copper and sulfuric acid react to form copper (II) sulfate and water and sulfur dioxide.
d) 2 NaBr + 1 CaF2 →2 NaF + 1 CaBr2

____ AlBr3 + ____ K2SO4 →____ KBr + ____ Al2(SO4)3
a) Aluminum and hydrochloric acid react to form aluminum chloride and hydrogen gas.
b) 2 HCl + 1 CaCO3 →1 CaCl2 + 1 H2O + 1 CO2
c) 2 AlBr3 + 3 K2SO4 →6 KBr + 1 Al2(SO4)3
d) 1 N2 + 3 H2 →2 NH3

Copper and sulfuric acid react to form copper (II) sulfate and water and sulfur dioxide.
a) Cu + 2 H2SO4 →CuSO4 + 2 H2O + SO2
b) Copper and sulfuric acid react to form copper (II) sulfate and water and sulfur dioxide.
c) 2 HCl + 1 CaCO3 →1 CaCl2 + 1 H2O + 1 CO2
d)

Potassium metal and chlorine gas combine to form potassium chloride.
a) 2 K + Cl2 →2 KCl
b) 2 HCl + 1 CaCO3 →1 CaCl2 + 1 H2O + 1 CO2
c) 2 AlBr3 + 3 Cl2 ←2 AlCl3 + 3 Br2
d) 2 H2 + 1 O2 →2 H2O

____ H2O + ____ O2 →____ H2O2
a) ____ Na + ____ H2O →____ NaOH + ____H2
b) 2 H2 + 2 NO →2 H2O + N2
c) Sodium phosphate and calcium chloride react to form calcium phosphate and sodium chloride.
d) 2 H2O + 1 O2 →2 H2O2

____ N2 + ____ H2→ ____ NH3
a) 2 H2 + 1 O2→2 H2O
b) 1 N2 + 3 H2 → 2 NH3
c) 2 C8H18 + 25 O2 →16 CO2 + 18 H2O
d) 2 HCl + 1 CaCO3 →1 CaCl2 + 1 H2O + 1 CO2

Calcium hydroxide and phosphoric acid react to form calcium phosphate and water.
a) 2 H2 + 2 NO →2 H2O + N2
b) 1 S8¬ + 12 O2 →8 SO3
c) 3 Ca(OH)¬2 + 2 H3PO4 →Ca3(PO4)2 + 6 H2O
d) 2 HCl + 1 CaCO3 →1 CaCl2 + 1 H2O + 1 CO2

____ Na + ____ H2O →____ NaOH + ____H2
a) 2 Na + 2 H2O→ 2 NaOH + 1 H2
b) Zn + Pb(NO3)2→Zn(NO3)2 + Pb
c) 6 CO2 + 6 H2O→ 1 C6H12O6 + 6 O2
d) 2 HCl + 1 CaCO3 →1 CaCl2 + 1 H2O + 1 CO2

Hydrogen gas and nitrogen monoxide react to form water and nitrogen gas.
a) 2 H2 + 2 NO →2 H2O + N2
b) Cu + 2 H2SO4 ←CuSO4 + 2 H2O + SO2
c) 2 NaBr + 1 CaF2 →2 NaF + 1 CaBr2
d) 1 H2 + 2 NO →7 H2O + N2

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