Miscellaneous
Sourness is quality of these types of substances
Acids
Name the following compound: LiF. Why is it an ionic compound?
Lithium Fluoride It is an ionic compound because the first part of the name is a metal ion whereas the second part of the name is a non-metal ion.
Name the following compound: CO. Why is it a molecular compound?
Carbon monoxide. It is a molecular compound because both parts of the name are non-metals.
A reaction where there are more substances in the products than the reactants
decomposition
Name the diatomic elements. (Hint: "diatomic 7")
1) hydrogen 2) nitrogen 3) oxygen 4) fluorine 5) chlorine 6) bromine 7) iodine
Reactions which absorb energy
Endothermic
Write the chemical formula for calcium chloride.
CaCl2
Quick learning check: What is the difference between an ionic compound and a molecular compound?
Ionic compounds= first part of the name is a metal ion whereas the second part of the name is a non-metal. Molecular compounds= both parts of the name are non-metals.
CuCl + NaBr --> CuBr + NaCl
double replacement
Write the following word equation as a chemical formula: sodium chloride ----> sodium + chlorine
2 NaCl ----> 2 Na + Cl2
In an experiment this is always conserved (units in g)
mass
Write the chemical formula of aluminum oxide.
Al2O3
Write the chemical formula of sulfur dioxide
SO2
copper + silver nitrate ----> silver + copper nitrate
Single resplacement reaction
Balance the following equation: ___ K + ___ Br2 ----> ___ KBr
2 K + Br2 ----> 2 KBr
A pH of 4 is more or less acidic than a pH of 6?
more acidic
Name the following compound: Copper (II) thiocyanate
Cu(SCN)2
Write the chemical formula for carbon tetrachloride.
CCl4
write chemical formula for the decomposition of water
H2O --> H2 + O2
Balance the following chemical equation: ___ S + ___ O2----> ___ SO3
2 S + 3O2 ----> 2 SO3
The answer to this equation (sig digs and units)
41.0 g/mol x 2 mol =
80 g
Write the chemical formula of potassium sulfide.
K2S
Name the following compound: NO. Is this a molecular compound?
Nitrogen monoxide. Yes it is a molecular compound because both nitrogen (N) and oxygen (O) are non-metals.
What are the products of a combustion reaction
carbon dioxide and water vapour
Balance the following chemical equation: ___ As + ___ O2 ----> ___ As2O5 What type of reaction is this?
4 As + 5 O2 ----> 2 As2O5 This is a synthesis reaction.