Density & Naming Covalent Compounds
Mass = 300 g Volume = 30 cm3
What is the density
10 g/cm3
Which element has the atomic number 1?
Hydrogen
True or False: Materials lose mass when they go from liquid to gas.
False
6H2O
The number 6 in the chemical formula above is its
coefficient
Balance the following chemical equation
__ C + 2O2 --> 2CO2
2
Mass = 550 g Volume = 11 mL
What is the density?
50 g/mL
Which element has the chemical symbol Ar?
Argon
What is the most common state of matter in the universe?
Plasma
4Al2
The number 2 in the chemical formula above is Aluminum's
subscript
__ H2 + O2 --> __ H2O
2, 2
Mass = 720 g Volume = 30 cm3
What is the density?
24 g/cm3
What is the chemical symbol of Potassium?
K
When the temperature of a substance increases, its particle movement
increases
6H2O How many Hydrogen atoms are there in this formula?
12
N2 + __ H2 --> __ NH3
3, 2
Using the rules of naming covalent compounds, name the following compound.
BF3
Boron trifluoride
What is the atomic number of Chlorine?
17
Name all four states of matter.
gas, liquid, solid, plasma
4Al2(SO3)
How many atoms of Oxygen are there in the formula above?
12
__ Co + __ F2 --> __ CoF3
2, 3, 2
Using the rules of naming covalent compounds, name the following compound. CCl4
Carbon tetrachloride
What is the atomic number of Aluminum?
13
During condensation, __ is changed into __.
gas, liquid
How many atoms of Oxygen do you see in the chemical formula? 2Pb(CH3COO)2
8
__ Al + __ HCl --> __AlCl3 + __ H2
2, 6, 2, 3