Properties of Matter Agenda Review: elements Quiz today Notes of properties Homework
B boron
Al aluminum
Si Silicon
Pb lead
Ca calcium
Sn tin
Li lithium
C carbon
K potassium
Ge germanium
Mg magnesium
Pb lead
Ga gallium
H hydrogen
Na sodium
Be beryllium
Li lithium
Al aluminum
Si Silicon
Al aluminum
Sr strontium
Sn tin
Ba barium
Ge germanium
C carbon
Ca calcium
Na sodium
Be beryllium
K potassium
B boron
Mg magnesium
Al aluminum
Sr strontium
Quiz Time
Properties of Matter Date
Physical Properties Get out your half sheet of paper with descriptions from yesterday. Share… Characteristics that can be observed or measured without changing the sample’s composition.
Examples: mass, volume, color, texture, shape, melting point, boiling point, density, solubility and magnetism. Need any defined? Density = mass / volume
Extensive vs. Intensive Extensive properties depend on the amount of substance. Mass, volume, shape Intensive properties are independent of the amount of substance present. Color, texture, melting point, boiling point, density, solubility, magnetism
States of Matter Draw the particles of a solid, liquid and gas. We use three ways to determine states of matter: the periodic table, common sense, and prior knowledge.
States of Matter cont. Solids – maintain their shape and volume (not compressible) Liquids – fluid in shape, but maintain volume (not compressible) Gas – fluid in shape, and do not maintain volume (compressible)
Practice Mercury (Hg) Zinc (Zn) Carbon (C) Salt (NaCl) Water (H 2 O) Air (N 2,O 2,CO 2 ) Alcohol (C 2 H 5 OH) Methane (CH 4 ) Neon (Ne) Chlorine (Cl 2 ) Bromine (Br 2 ) Snickers bar (CHOCoLaTe)
Chemical Properties Describe the ability of a substance to combine with or change into one or more other substances. Example: Has the ability to burn or rust.
Properties Vs. Changes Properties describe Changes actually occur
Physical change Alters the appearance of a substance, but does not change the composition. Examples: all phase changes, break, crush, split, crack Melt/freeze Vaporize/condense Sublimation/deposition
Chemical Change AKA, chemical reactions, involve the changing of one or more substances into a new substance. The new substance has new physical properties.
Homework PC PC worksheet