Chemistry Chapter 7 Worksheet

Write a balanced equation for each of the following combination reaction: Iron is heated with fluorine gas to yield iron (III) fluoride.

2Fe(s) + 3F2(g)--> 2FeF3(s)

What are two examples of evidence for chemical reaction?

1. Dropping Potassium metal into water to give a violet flame. 2. Dropping zinc metal into acid to give gas bubbles

Write a balanced equation for each of the following combination reaction: Sulfur is heated with oxygen and Pt catalyst to form sulfur trioxide gas.

2S(s) + 3O2(g)--> 2SO3(g)

Write a chemical equation for iron metal combining with chloride to give yellow iron (II) chloride.

Fe(s) + Cl2(g) --> FeCl(2)

Classify each reaction in question 6 as one of the following: combination, decomposition, single replacement, double replacement, or neutralization. a. b. c. d. e. f. g. h. i. j.

a. combination b. decomposition c. single replacement d. DR e. N f. N g. DR h. SR i. decomposition j. SR

Identify each of the following compounds as soluble or insoluble in water: a. (NH4)2S b. ZnCO3 c. Pb(C2H3O2)2 d. Ca(OH)2

a.) soluble b.) insoluble c.) soluble d.) soluble

Write a chemical equation for the reaction of manganese metal with aqueous nickel (II) nitrate to produce aqueous manganese (II) nitrate and nickel metal.

Mn(s) + Ni(NO3)2--->Mn(NO3)2 + Ni(s)

Complete and balance the following neutralization reaction: HCl(aq) + Ba(OH)2(aq) →

BaCl2 + 2H2O(l)

Write a balanced equation for each of the following decomposition reaction: Nickel (II) hydrogen carbonate decomposes by heating to give nickel (II) carbonate, water and carbon dioxide gas.

Ni( HCO3)2(s) + NiCO3(s) + H2O (l) + CO2(g)

Balance each of the following chemical equations: Balance each of the following chemical equations: ____Co(s) + ____O2(g) → ____Co2O3(s) ____ LiClO3(s) → ____ LiCl(s) + ____ O2(g) ____Cu(s) + ____AgC2H3O2(aq) → ____Cu(C2H3O2)2(aq) + ____Ag(s) ____Pb(NO3)2(aq) + ____LiCl(aq) → _____PbCl2(s) + _____LiNO3(aq) ____H2SO4(aq) + ____Al(OH)3 → ___Al2(SO4)3(aq) + ____H2O(l) ____HClO4(aq) + ____Ba(OH)2(aq) → ____Ba(ClO4)2(s) + H2O(l) ____Co(NO3)2(aq) + ____H2S(g) → ____CoS(s) + ____HNO3(aq) ____Fe(s) + ____Cd(NO3)2(aq) → ____Fe(NO3)3(aq) + ____Cd(s) ____Fe2(CO3)3(s) → ____Fe2O3(s) + CO2(g) ____Sn(s) + ____P(s) → ____Sn3P2(s)

Balance each of the following chemical equations: a.) _4_Co(s) + _3_O2(g) → _2__Co2O3(s) b.) _2_ LiClO3(s) → _2__ LiCl(s) + _3_ O2(g) c.) _1_Cu(s) + _2_AgC2H3O2(aq) → _1_Cu(C2H3O2)2(aq) + _2_Ag(s) d.)____Pb(NO3)2(aq) + _2_LiCl(aq) → _____PbCl2(s) + __2_LiNO3(aq) e. _3_H2SO4(aq) + _2_Al(OH)3 → ___Al2(SO4)3(aq) + _6__H2O(l) f. _2_HClO4(aq) + ____Ba(OH)2(aq) → ____Ba(ClO4)2(s) + H2O(l) g. ____Co(NO3)2(aq) + ____H2S(g) → ____CoS(s) + _2_HNO3(aq) h. _2_Fe(s) + _3_Cd(NO3)2(aq) → __2_Fe(NO3)3(aq) + _3_Cd(s) i. ____Fe2(CO3)3(s) → ____Fe2O3(s) + CO2(g) + 3CO2 j. _3_Sn(s) + _2_P(s) → ____Sn3P2(s)

Write a chemical equation for solid cadmium hydrogen carbonate decomposing to yield solid cadmium carbonate, water, and carbon dioxide gas.

Cd(HCO3)2 ---> CdCO3 + H2O +CO2

Write a balanced equation for each of the following decomposition reaction: Chromium (III) carbonate decomposes with heat to give solid chromium (III) oxide and carbon dioxide gas.

Cr2(CO3)3(s)---->Cr2O3(s) + 3CO2(g)

Write a chemical equation for the neutralization of acetic acid with aqueous sodium hydroxide to give aqueous sodium acetate plus water.

Hc2H3O2(aq) + NaOH(aq)--> NOC2H3O2(aq) + H2O (l)

Write a balanced equation for the following single-replacement reaction: magnesium metal is added to hydrochloric acid.

Mg(s) + 2HCl(aq)--> MgCl2(aq) +H2(g)

Complete and balance the following double replacement reaction: MgSO4(aq) + BaCl2(aq) →

MgCl2(aq) + BaSO4(s)

Write a balanced equation for each of the following combination reaction: Tin metal is heated with oxygen gas to yield tin (IV) oxide.

Sn(s) + O2(g)---> SnO2(s)