Classifications
A material that is composed of only one type of particle
Pure substance
How groups and periods are on the periodic table?
18 groups
7 periods
What are the two types of properties?
Chemical and physical properties
How much mass something has in a certain volume
Density
the amount of matter that makes up something
Mass
Compounds
What is on the right side of the periodic table?
Nonmetals
Properties that detected by the senses or can be identified without a chemical reaction
Physical properties
A solid magnesium flare has a mass of 1300 g and a volume of 743 cm3 . What is the density of the magnesium?
1.7 g/cm3
Definite shape and volume
Solid
What are the seven diatomic molecules?
Hydrogen, Nitrogen, Oxygen, Fluorine, Chlorine, Bromine, and Iodine
What is the most reactive metal and nonmetal?
Francium and Flourine
Silver tarnishing is an example of what?
Chemical properties
Calculate the volume of a liquid with a density of 5.45 g/mL and a mass of 65 g.
11.9 mL
Energy of motion
Kinetic Energy
Fog is an example of what?
Homogenous (colloid)
What are three characteristics of a metal?
Shiny, dense, good conductors of electricity, high density, high melting point, malleable, etc.
Changes phases, no new substance is created, and shape changes are all examples of what?
Physical change
Calculate the mass of a liquid with a density of 45 g/mL and a volume of 25 mL
1125 grams
What are the 7 types of energy?
Chemical, Nuclear, Mechanical, Light, Electrical, Sound, and Thermal.
What are the two laws of matter? Definition?
Law of Definite Composition- a given compound always contains the same, fixed ratio elements
Law of Multiple Proportions- elements can combine in different ratios to form different compounds
How many valence electrons does Copper (Cu) have and what is the oxidation number for Magnesium (Mg)?
Cu does not have valence electrons because it is a transition metal. Mg has an oxidation number of +2
Molding a piece of clay into the shape you want is an example of?
Physical changes
When you add a rock to 60 mL of water in a graduated cylinder, the water rises to 80 mL. The density of the rock is 4.2 g/cm. What is the rock's mass?
84 grams
What are the three ways heat can be transferred?
Convection, Conduction, and Radiation