honors chemistry: 9.3, 11.1, & 11.2
Balance Al + N2 -> AlN.
2Al + N2 -> 2AlN
Balance SO2 + O2 -> SO3.
2SO2 + O2 -> 2SO3
Balance P + O2 -> P4O10.
4P + 5O2 -> P4O10
Complete and balance an equation for the reaction: Al + Cl2 ->
6Al + 3Cl2 -> 2AlCl3
What information do prefixes in the name of a binary molecular compound tell you about the composition of the compound?
A prefix in the name of a binary molecular compound tells how many atoms of an element are present in each molecule of the compound.
Complete and balance an equation for the reaction: Ag + HCl ->
Ag + 2HCl -> AgCl2 +H2
Write the name for BCl3.
Boron trichloride
Complete and balance an equation for the reaction: C2H2 + O2 ->
C2H2 + O2 -> H2O + 2CO2
Write the formula for carbon tetrabromide.
CBr3
Complete and balance an equation for the reaction: CaI2 + Hg(NO3)2 -> (HgI2 precipitates.)
CaI2 + Hg(NO3)2 -> Ca(NO3)2 + HgI2
Write the name for CS2.
Carbon disulfide
Write the formula for chlorine trifluoride.
ClFl3
Write a skeleton equation for heating copper (II) sulfide in the presence of diatomic oxygen produces pure copper and sulfur dioxide gas.
CuS + O2 + heat -> Cu and SO2
Write the name for Cl2O7.
Dichloride heptoxide
Write the name for N2H4.
Dinitrogen tetrahydroxide
Write the name for N2O3.
Dinitrogen trioxide
Balance Fe2O3 + H2 -> Fe + H2O.
Fe2O3 + 3H2 -> 2Fe + 3H2O
Write the formula for iodine heptafluoride.
IFl7
Write the formula for iodine dioxide.
IO2
Complete and balance an equation for the reaction: MgCl2 ->
MgCl2 -> Mg + Cl2
Write a skeleton equation for when heated, baking soda sodium hydrogen carbonate) decomposes to form the products sodium carbonate, carbon dioxide, and water.
NaHCO3 + heat -> Na2CO3 + CO2 and H2O
Write the name for NCl3.
Nitrogen trichloride
Write the name for NI3.
Nitrogen trioxide
The name a student gives for the molecular compound SiCl4 is monosilicon trchloride. Is this name correct? Explain.
No, it should be silicon tetrachloride; they used the wrong suffixes
Write the formula for diphosphorus trioxide.
P2O3
Write the formula for phosphorus pentachloride.
PCl5
Write and balance the equation for this reaction: Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas.
Skeleton: Al2(CO3)2 -> Al2O3 +CO2 Balanced: Al2(CO3)2 -> Al2O3 + 3CO2
Write and balance the equation for this reaction: Iron metal and chlorine gas react to form solid iron (III) chloride.
Skeleton: Fe + Cl -> FeCl3 Balanced: Fe + 3Cl -> FeCl3
Write and balance the equation for this reaction: Solid magnesium reacts with aqueous silver nitrate to form solid silver and aqueous magnesium nitrate.
Skeleton: Mg + AgNO3 -> Ag + Mg(NO3)2 Balanced: Mg + 2AgNO3 -> 2Ag +Mg(NO3)2
Write the name for SO3.
Sulfur trioxide
What are the five types of chemical reactions?
The five general types of reactions are combination, decomposition, single-replacement, double-replacement, and combustion
What are the keys to predicting the products of the five general types of reactions?
The number of elements and/or compounds reacting is a good indicator of possible reaction type and thus possible products
Describe the steps in writing a balanced chemical equation.
To write a balanced chemical equation, first write the skeleton equation. Then use coefficients to balance the equation so that it obeys the law of conservation of mass
How do you write a word equation?
To write a word equation, write the names of the reactants to the left of the arrow separated by plus signs; write the names of the products to the right of the arrow, also separated by plus signs
Describe how to write the formula of a binary molecular compound.
Use the prefixes in the name to tell you the subscript of each element in the formula. Then write the correct symbols for the 2 elements with the appropriate subscripts.
How do you write a skeleton equation?
Write the formulas of the reactants to the left of the yields sign (arrow) and the formulas of the products to the right
Classify and balance the equation: Li + O2 -> Li2O.
combination, 4Li + O2 -> 2Li2O
Which of the five general types of reaction would most likely occur, given each set of reactants? What are the probable products?: Two elements.
combination, a single compound
Classify and balance the equation: C3H6 + O2 -> CO2 + H2O.
combustion, C3H6 + 3O2 -> 3CO2 + 3H2O
Which of the five general types of reaction would most likely occur, given each set of reactants? What are the probable products?: Oxygen and a compound of carbon and hydrogen.
combustion, CO2 and H2O
Classify and balance the equation: Al(OH)3 -> Al2O3 + H2O.
decomposition, 2Al(OH)3 -> Al2O3 + 3H2O
Which of the five general types of reaction would most likely occur, given each set of reactants? What are the probable products?: A single compound.
decomposition, two elements or an element and a compound
Classify and balance the equation: Zn + AgNO3 -> Ag + Zn(NO3)2.
double replacement, Zn + Ag2NO3 -> Al2O3 + 3H2O
Which of the five general types of reaction would most likely occur, given each set of reactants? What are the probable products?: An aqueous solution of two ionic compounds.
double replacement, two new compounds driven by a precipitate, a gaseous product, or water
What are the three types of products that result from double-replacement reactions?
slightly soluble, gas, molecular compound (water)
