Balancing Equations Practice

___ P + ___ O2 ___ P4O10

___CO2 + ___NH3 ___OC(NH2)2 + __H2O

___ Al2O3 ___ Al + ___ O2

__AlBr3 + __K2SO4 __KBr + __Al2(SO4)3

___ Zn + ___ HCl ___ ZnCl2 + ___ H2

___ HgO ___ Hg + ___ O2

___ Mg + ___ O2 ___ MgO

The reaction below shows Chlorine (Cl) reacting with oxygen (O2) to form Cholrine oxide (ClO2). The mass of Chlorine is 25 grams and the mass of oxygen is 42 grams.

What mass of Chlorine oxide is produced?a. 17 gramsb. 39 gramsc. 67 gramsd. 71 grams

In the chemical reaction below, sodium (Na) and chlorine (Cl) combine to form sodium chloride (NaCl).

2Na + Cl2 → 2NaCl

If the combined mass of the starting reactants is 50 grams, then the mass of sodium chloride formed once the reaction has reached completion

a. will be less than 50 grams.b. will be exactly 100 grams.c. will be exactly 50 grams.d. will be between 50 and 100 grams

In a chemical reaction, the total mass of the reactants is 10.0 grams. After the reaction, the total mass of the products must be:

a. less than 10.0 grams. b. exactly 20.0 grams. c. more than 10.0 grams. d. exactly 10.0 grams.

__BaCl2 + __H2SO4 __BaSO4 + __HCl

___ Ca(ClO3)2 ___CaCl2 + ___ O2

__C2H5OH + __O2 __CO + __H2O

___ Zn + ___ HCl ___ ZnCl2 + ___ H2

__Al(NO3)3 + __NaOH __Al(OH)3 + __NaNO3

____ C10H16 + ___ Cl2 ___ C + ___ HCl

____ Ag2O ____ Ag + ____O2

___BaF2 + __K3PO4 __Ba3(PO4)2 + ___KF

___ I4O9 ___ I2O6 + ___ I2 + ___ O2

__ KMnO4 + __ HCl __ KCl + __ MnCl2 + __ H2O + __ Cl2

___ C3H8 + ___O2 ___ CO2 + ___ H2O

__ Al2O3 + __ Fe __ Fe3O4 + __ Al

___ P4O10 + ___H2O ___H3PO4

__Al + __H2SO4 __Al2(SO4)3 + __H2

__Be2C + __H2O __Be(OH)2 + __CH4

___ Fe + ___ O ___ Fe2O3

__S + __HNO3 __H2SO4 + __NO2 + __H2O

__NH3 + __CuO __Cu + __N2 + __H2O

__Cu + __HNO3 __Cu(NO3)2 + __NO + __H2O

Al2(SO3)3 + NaOH Na2SO3 + Al(OH)3