A
When naming binary compounds, the name of the second element always ends in ________.
-ide
Give the formula for the following name:
tri lithium tetra hydride
Li3H4
Give the name for the following elements:
S
F
Ca
sulfur, fluorine, calcium
Where do you get the molar mass of each element when given a compound?
periodic table, bottom number
2NaBr + Cl2 --> 2NaCl + Br2
How many molecules?
How many atoms of Br in total?
4
Name the following compound:
Br6Ca8
hexa bromine octa calcide
Which is the coefficient of the following reaction?
Ex: 2Al + OH --> 2AlOH
2
What is the prefix of the following:
3 6
4 7
5 8
tri hexa
tetra hepta
penta octa
KOH + HF --> KF + H2O
Which type of reaction is this?
double displacement
When naming binary compounds, the name of the first element is left _________________.
unchanged
A + BC --> AC + B
Which type of reaction is this?
single displacement
When you write a chemical reaction like this:
A + B --> AB
How do you call the left side?
Reactants
AB + CD --> AD + BC
Which type of reaction is this reaction?
double displacement
When you write a chemical reaction like this:
A + B --> AB
How do you call the right side?
products
2Ag2O --> 4Ag + O2
What type of reaction is this?
Decomposition
What is defined as....
the sum of the masses of the products is always equal to the sum of the masses of the reactants.
law of conservation of masses
Find the molar mass of (CO2)2
C=12.01
O=15.99
87.98
What is defined as...
the sum of the masses of all the atoms in a molecule.
formula mass
Find the molar mass of NaBr2
Na=22.99
Br=79.90
182.79
How do you call the number in front of each molecule in a reaction?
Ex: 2Al + OH --> 2AlOH
coefficient
CH4 + O2 --> CO2 + H2O
CH4 + 2O2 --> CO2 + 2H2O
SiO2 + HF --> SiF4 + H2O
SiO2 + 4HF --> SiF4 + 2H2O
NaBr + Cl2 --> NaCl + Br2
2NaBr + Cl2 --> 2NaCl + Br2
How do you call the following molecule?
Mg5Cl3
penta magnesium tri chloride
Give the molecule for the following:
di potassium trihydride
K2H3