MATTER
What is Volume?
The measure of the amount of space an object occupies
What are the states of matter?
Solid, liquid, gas, plasma
A change in which no new material is formed.
Physical change
What is the formula when we need to solve for Density?
Density = mass/volume
The hotness or coldness of an object.
Temperature
The change from liquid to gas
Evaporation
True or False
The change in taste is an example of physical change.
False
If 96 grams of gold has a volume of 5 cm3, what is the density of gold?
D= 19.2 g/cm3
Density = mass ÷ volume
= 96 g ÷ 5 cm3
= 19.2 g/cm3
The simplest form of a substance.
Element
Phase change from solid to gas is called ______
Sublimation
The ability of a material to be easily broken into pieces.
Brittleness
What is the formula used to convert 0C to 0K?
K = 0C + 273.15
When elements chemically combine they form a _________
Compound
Ex: Hydrogen + oxygen = H2O (water)
Give an example of condensation
steam
Rust is formed when iron reacts to oxygen. Rust is also called ______
Iron oxide/red oxide
If a 96 gram piece of aluminum has a density of 3 g/cm3, what is its volume?
V = 32cm3
> V = M ÷ D
V = 96 g ÷ 3g/cm3
= 32 cm3
What is the chemical formula of glucose?
C6H12O6
A phase transition in which gas transforms into solid without passing through liquid state.
Deposition
The changes in the appearance of apples, potatoes and bananas turning brown when exposed to air is due to ________
Oxidation
Convert 39 0C into Fahrenheit
= 102.2 0F
> 0F = (0C x 1.8) + 32
= (39 0C x 1.8) + 32
= 70.2 + 32
= 102.2 0F