Physical Properties of Metal
A term used to describe a material jay can be pulled out into a long wire
ductile
Two elements are combined to form a compound
EX) A + B --> AB
synthesis
change in matter that does NOT produce a new substance
physical change
Mass is measured in what unit?
g / grams
What are the formulas for density, mass and volume?
(d= density m= mass v= volume)
d= m/v m = d x v v = m/d
A term used to describe material that can be pounded into shapes.
malleable
A compound that is broken down into two elements
EX) AB--> A + B
Decomposition
change in matter that results in a COMPLETELY new substance
chemical change
Volume is measured in what unit?
cm3 or mL
Mass = 25.0 g
Volume = 5.0 mL
d= m/v
d= 5.0 g/mL
a term that can be used to describe a material that can transfer heat or electricity to another object
conductive
one element replaces another element in a compound
EX) A + BC --> AC + B
single replacement
Melting, boiling, freezing, cutting, bending & dissolving are examples of
physical changes
Density is measured in what units?
g/ cm3 OR g/mL
A cube has a mass of 44.0 g. The density is
5.5 g/mL. Find the volume.
v= m/d
v= 8 cm3
a term used to describe the shininess of an object
luster
the elements in two compounds change partners, resulting on the formation of two compounds
EX) AB + CD --> AD + CB
double replacement
chemical changes
Rank the densities in order from smallest to largest:
.00245 g/mL, .22045g/mL, 22.45g/mL, .0245 g/mL
.00245 g/mL,
.0245 g/mL,
.22045g/mL,
22.45g/mL,
A rock has a density of 100 g/cm3 and a volume of 25 cm3. Find the MASS.
m = v x d
m = 100 g/cm3 x 25 cm3
m = 2500 g
What is a property of a NONMETAL?
dull, brittle, low conductivity,
What are THREE factors that change the rate of reaction
2. heat
3. crush
fireworks exploding is an example of a
chemical change
What is the density of water?
1 g/mL OR 1 g/cm3
An object with a lower density will __________ compared to an object with a higher density.
FLOAT