Module 7 Quiz

The reaction HNO3(aq) + KOH(aq) --> KNO3(aq) + H2O(I) is best classified as:

acid-base neutralization reaction

Name the following reaction type: aAl(s) + bFe2O3(s) --> cAl2O3(s) + dFe(s)

single displacement

Name the most active metal in the reaction below: aAl(s) +bFe2O3(s) --> cAl2O3(s) + dFe(s)

Al

Calcium phosphate reacts with sulfuric acid to form calcium sulfate and phosphoric acid. What is the stoichiometric coefficient for sulfuric acid when the chemical equation is balanced using the lowest whole-number stoichiometric coefficients?

3

When the following equation is balanced what is the coefficient for Ca2+? __Ca2+(aq) + __PO4^3+(aq) --> __Ca3(PO4)2(s)

3

What is another name for salt?

an ionic compound

Name the following reaction type: aFe(s) + bO2(g) --> cFe3O4(s)

more than one of these

The reaction C6H12O6(s) + 6 O2(g) --> 6 CO2(g) + 6 H2)(I) is best classified as:

oxidation-reduction reaction

When dissolved in water, LiOH behaves as:

a base that forms Li+ and OH- ions

Chemical equations are balanced in order to obey the law of:

mass conservation

Which gas is monatomic at STP?

neon

Which four quantities a, b, c, and d are required to balance the following chemical equation: aMg(OH)2(s) + bH2SO4(aq) --> cMgSO4(aq) + dH2O(I)

1 1 1 2

Which five quantities a, b, c, d and e are required to balance the following chemical equation: aTI2(CO3)3(s) +bHCl(aq) --> cTICl3(aq) + dH2O(I) + eCO2(g)

1 6 2 3 3

Which four quantities a, b, c, and d are required to balance the following chemical equation: aC7H8(g) + bO2(g) --> cCO2(g) + dH2O(I)

1 9 7 4

On a molecular level, what do the coefficients mean in the following chemical equation: N2 (g) + 3 H2 (g) --> 2 NH3 (g)

1 molecule of nitrogen reacts with 3 molecules of hydrogen to give 2 molecules of ammonia

What is the sum of the coefficients when the following equation is balanced using the lowest whole-numbered coefficients? _____PH3(g) + _____O2(g) --> _____P4O10(s) + _____H2O(g)

19

What is the ratio of moles of oxygen used to moles of CO2 produced in the following reaction? 2 CO(g) + O(g) --> 2 CO2(g)

1:2

Which four quantities a, b, c, and d are required to balance the following chemical equation: aAl(s) + bFe2O3(s) --> cAl2O3(s) + dFe(s)

2 1 1 2

Write a balanced net ionic equation for the reaction of H2SO4(aq) with Ba(OH)2(aq).

2 H+(aq) + SO4^2-(aq) + Ba2+(aq) + 2 OH-(aq) --> BaSO4(s) + 2 H2O(I)

Write a balanced net ionic equation for the reaction of AgNO3(aq) with Cu(s).

2Ag+(aq) + Cu(s) --> 2 Ag(s) + Cu2+(aq)

Which 3 quantities a, b, and c are required to balance the following chemical equation: aFe(s) + bO2(g) --> cFe3O4(s)

3 2 1

In the reaction AgNO3(aq) + HI(aq) --> Agl(s) + HNO3(aq) the spectator ions are:

H+ and NO3-

Which is the strongest acid in aqueous solution?

HNO3

Write a balanced net ionic equation for the reaction of Pb(NO3)2(aq) with Nal(aq).

Pb2+(aq) + 2 I-(aq) --> PbI2(s)

Which one of the following compounds is insoluble in water?

PbSO4

Name the following reaction type: aTI2(CO2)3(s) + bHCl(aq) --> cTICl3(aq) + dH2O(I) + eCO2(g)

combination

Name the following reaction type: CH4(g) + 2 O2(g) --> CO2(g) + 2 H2O(g)

combustion

Name the following reaction type: aMg(OH)2(s) + bH2SO4(aq) --> cMgSO4(aq) + dH2O(I)

double displacement

Which of the following is a property of acids?

sour taste