chem test dec 12

Select the correct chemical equation for the following reaction: Lithium phosphate reacts with mercury (ii) nitrate TIP: you will want to (1) figure out the formulas of these reactants (2) assign charges to each ion (3) predict the products of the reaction (4) balance the equation (5) determine if a precipitate forms, and what it is

2 Li3PO4(aq) + 3 Hg(NO3)2(aq) → 6 LiNO3(aq) + Hg3(PO4)2(s)

__ H2CO3(aq) + __ N2O(g) → __ CN(g) + __ H2O2(g) + __ CO2(g) + __ O2(g)

3, 1 → 2, 3, 1, 1

Select the correct chemical equation for the following reaction: Silver chlorate reacts with rubidium chloride TIP: you will want to (1) figure out the formulas of these reactants (2) assign charges to each ion (3) predict the products of the reaction (4) balance the equation (5) determine if a precipitate forms, and what it is

AgClO3(aq) + RbCl(aq) → AgCl(s) + RbClO3(aq)

solid aluminum reacts with liquid bromine to form solid aluminum bromide

Al(s) + Br2(l) -> AlBr3(s)

solid aluminum reacts with iodine gas to form solid aluminum iodide

Al(s) + I2(g) -> AlI3(s)

2 HCl + Li2S → 2 LiCl(aq) + H2S(g)

DRR gas formation

H2SO4(aq) + 2 KOH(aq) → 2 H2O(l) + K2SO4(aq)

DRR neutralization

AgNO3(aq) + KI(aq) → AgI(s) + KNO3(aq)

DRR precipitation

Which are the product(s) of this chemical reaction? FeCl3 + NH4OH →

Fe(OH)3 + NH4Cl

aqueous hydrochloric acid and solid sodium react to form solid sodium chloride and hydrogen gas

HCl(aq) + Na(s) -> NaCl(s) +H2(g)

aqueous chlorous acid and solid potassium react to form solid potassium chlorite and hydrogen gas

HClO2(aq) + K(s) -> KClO2(s) + H2(g)

in aqueous solution, potassium chlorate reacts to form potassium chloride and oxygen gas

KClO3(aq) -> KCl(aq) + O2(g)

picture

MnBr2 + Ca →

For the following reaction, select the correct net ionic equation and spectator ions: Ammonium sulfide reacts with perfluoric acid TIP: (1) write down each of these ions and their charges; reactants are aqueous (2) go to your solubility rules table in the notes I typed up for you (3) figure out if there is a precipitate formed (4) if it isn't on the chart, assume it is soluble (5) "always soluble" trumps "never soluble"

NIE: 2 H+(aq) + S-2(aq) → H2S(g) & spectator ions: NH4+(aq) + FO4-(aq)

HBr(aq) + RbOH(aq) →

NIE: H+(aq) + OH-(aq) → H2O(l) | spectator ions: Rb+(aq), Br-(aq)

For the following reaction, select the correct net ionic equation and spectator ions: Strontium nitrate reacts with sodium sulfate TIP: (1) write down each of these ions and their charges; reactants are aqueous (2) predict the products and balance the equation (3) figure out if there is a precipitate formed (go to your solubility rules table in the notes I typed up for you) (4) if it isn't on the chart, assume it is soluble (5) "always soluble" trumps "never soluble"

NIE: Sr+2(aq) + SO4-2(aq) → SrSO4(s) & spectator ions: Na+(aq) + NO3-(aq)

n aqueous solution, sodium hydroxide and iron (iii) chloride react to form iron (iii) hydroxide and sodium chloride

NaOH(aq) + FeCl3(aq) -> NaCl(aq) + Fe(OH)3(aq)

K3N(s) + Ca(s) → Ca3N2(s) + K(s)

SRR metal replacement

ZnI2(s) + Cl2(g) → ZnCl2(s) + I2(s)

SRR nonmetal replacement

Al(s) + F2(g) → AlF3(s)

aluminum and fluorine produces aluminum fluoride

C6H12O6(s) + 6 O2(g) → 6 CO2(g) + 6 H2O(l)

combustion

CH4(g) + O2(g) → CO2(g) + H2O(l)

methane and oxygen forms carbon dioxide and water

3 H2CO3(aq) + N2O(g) → 2 HCN(g) + 3 H2O2(g) + CO2(g) + O2(g)

none of these

AgNO3(aq) + KCl(aq) → AgCl(s) + KNO3(aq)

silver nitrate and potassium chloride forms silver chloride precipitate and potassium nitrate

What type of reaction takes place when fluorine reacts with sodium bromide?

single replacement

2 NH3(l) → N2(g) + 3 H2(g)

decomposition

Use the activity series shown to predict which reaction will occur. Activity Series for Halogens Fluorine Most Active Chlorine Bromine Iodine Least Active

KBr + F2 →

H2(g) + F2(g)+ 2 S(s) → 2 HSF(s)

synthesis

Consider a balanced chemical equation. The arrow separating the reactants and products can be thought of like an equal sign, requiring the same number(s) of each atom(s) on each side.

true

What is the probable product of a double-replacement reaction?

two different compounds