Balancing Equations
Words to formula
Types of Rxns/Predict Products
More Practice
100

_____NaClO3   →   _____NaCl    +   _____O2

2NaClO3   →   2NaCl    +  3O2

100

Liquid calcium carbonate reacts with liquid hydrogen chloride to produce solid calcium chloride, water and gaseous carbon dioxide.

Ca2(CO3)2(l) + HCl(l) -> CaCl2(s) + H2O(l) + CO2(s)

100

H2 +O2🡪

Predict the products and ID type of rxn

H2O Synthesis Rxn

100

____C3H4 + ___O2🡪

Predict products, type of reaction then balance equation

Products: CO2 +H2O

Type: Combustion 

Balanced 1,4,3,2

200

_____CuO  +   _____NH3  →  _____N2  +   _____Cu  +   _____H2O    

3CuO  +   2NH3  →  1N2  +   3Cu  +   3H2O    

200

Solid zinc reacts with aqueous calcium thiosulfate to form aqueous zinc (III) thiosulfate and solid calcium metal.

Zn(s) + Ca(S2O3)2(aq) -> Zn2(S2O3)3(aq) + Ca(s)

200

Cs + AlCl3🡪 

Predict Products and ID type of rxn


Al + CsCl

Single Replacement Rxn

200

Silver (I) nitrite  + Barium sulfate 🡪

Predict products

Ag(NO3) + Ba(SO4) -> Ag2(SO4) + Ba(NO3)2

300

_____Ca + ____ AlCl3 → _____CaCl2 + ____Al

3Ca + 2AlCl3 → 3CaCl2 + 2Al

300

Liquid Nitric acid H(NO3) reacts with liquid strontium hydroxide to produce  solid strontium nitrate and steam (gaseous water).

H(NO3)(l) + Sr(OH)2(s) -> Sr(NO3)2(s) + H2O(l)

300

AgCl🡪 

Predict Products and Type of Rxn

Ag + Cl2 

Decomposition Rxn

300

____C6H8 + ___O2🡪 

Predict Products and type of rxn 

Products: CO2 + H2O

Ty[e: Combustion rxn

400

Identify the mistake in the coefficients- then correctly balance the equation:

3Ca + 3 AlCl3 → 2 CaCl2+ 2 Al

3Ca + 3 AlCl3 → 2 AlCl3 + 2 Al

3Ca + 2 AlCl3 → 3 AlCl3 + 2 Al

400

Solid sodium metal reacts with liquid  nickel (II) nitrite to produce  aqueous sodium nitrite and solid nickel.

Na(s) + Ni(NO3)(l) -> Na(NO3)(aq) + N2(s)

400

NaCl  +  Pb(NO3)2 🡪

Predict Products and type of rxn

Products: Na(NO3) + PbCl2

Type: Double Replacement rxn

400

Solid potassium metal reacts with liquid Copper (II) Nitrate to produce solid potassium nitrate and liquid copper.

K(s) + Cu(NO3)2(l)-> K(NO3)(s) + Cu(s)

500

Identify the mistake in the coefficients- then correctly balance the equation:

1 Na +  2 Fe(NO2)2 →  2 Na(NO2)+  1 Fe

1 Na +  2 Fe(NO2)2 →  2 Na(NO2)+  1 Fe

Correct equation:

 2 Na +  1 Fe(NO2)2 →  2 Na(NO2)+  1 Fe

500

Solid sodium bromide reacts with liquid calcium fluoride to produce aqueous calcium bromide and liquid sodium fluoride.

NaBr(s) + CaF2(l) -> CaBr2(aq) + NaF(l)

500

Aluminum  + Barium chlorate 🡪

Predict the Products and type of rxn

Al + Ba(ClO3)2 -> Ba + Al(ClO3)3

Single replacement

500

A chemist mixes a known solution of Ca(NO3)2 with two unmarked bottles one is K2(CO3) and the other is NaCl. In order to determine which bottle has which solution the chemist must mix their known solution with the unmarked bottles individually. Using the products of both of these reactions and the solubility chart predict which reaction will produce a precipitate therefor determining which bottle contains which solution

If you get this far did you write 

Ca(NO3)2 + K2(CO3) -> then the products? 

Ca(NO3)2 + NaCl -> then the products? 

if yes look at the solubility chart and see which product will be insoluble

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