Matter
All matter comes in 2 forms
pure subtances and mixture of pure subtances
Quantitative or qualitative?
The sample is a fine pink solid.
Qualitative
How many sig figs?
500
1
What is the density formula?
D=m/v
What does milli represent?
10-3
Chemical or physical property?
ability to combust
chemical
Convert to Scientific Notation:
638 000 000 000
6.38 x 1011
How many sig figs? 500.0
4
What is the formula for volume
v=m/D
Convert to 300 cm to m
3m
What type of matter has no definite shape or volume
gas
How many Oxygens are in this compound
Mg(NO3)2
6
How many sig figs?
50500
3
What is the Density of an object if the mass 5.00 g and a volume of 4.68 mL?
Use appropriate sig figs and units.
1.07 g/mL
Convert 0.000078 L to μL
78μL
How can you separate a mixture by boiling point?
Distillation
Chemical or physical change?
Sublimation
physical
78.986+87.90
166.89
What is the mass of an object with density of 0.967 g/mL and a volume of 7.2 mL?
Use the appropriate sig figs and units.
6.96 mL
Convert 90 dL to L
9.0 L
What type of matter cannot be broken down by chemical means?
elements
What is a subtance that is in its gaseous form but is solid or liquid at room temperature?
vapor
980*7
7000
What is the volume of an object with a mass of 8 g and density of 0.784 g/mL?
Use appropriate sig figs and units.
10 mL
Convert 0.856 Km to m
856m