As Is Flashcards
Density
A characteristic physical property that can be used to identify the type of matter in the sample
Density formula
Mass/volume
Density is the measure of…
How closely picked the matter in the substance is
The denser the substance…
The more closely picked the matter
The density of a substance stays…
Constant, regardless of the amount for homogenous objects
Density units for solids:
- g/cm3
- kg/m3
Density units for liquids and gasses:
- g/mL
- g/L
1g of water =
1 mL of water
If an object has a density less than 1g/mL it will…
Sink
Less dense substances…
Float on denser substances
Physical properties
Characteristics of a substance that can be determined without altering the nature of the substance
Types of motion
- Translational
- Rotational
- Vibrational
Rotational
Spinning motion around axis
Translational
Linear movement
Vibrational
A back and forth oscillation
Kinetic energy
Based on motion of the particles involved
Potential energy
Based on the position or state of the matter
IMF
inter molecular forces
When matter gains energy, the surrounding has to
Endothermic reactions cause the surroundings to cool
If energy is added to matter it’s called
And endothermic change
- energy enters the matter
When matter loses energy..
The surroundings have to gain energy
- exothermic reactions cause the surroundings to warm
If energy is removed from matter it’s called
An exothermic change
Negative potential energy…
Increases as you go from gas to liquid to solid
KE is relatable to..
Temperature
PE is relatable to
Phase/state
