O verview of M atter
Jun 19, 2015
Overview of Matter
Matter Flowchart
MATTER
Can it be physically separated?
Homogeneous Mixture
(solution)
Heterogeneous Mixture Compound Element
MIXTURE PURE SUBSTANCE
yes no
Can it be chemically decomposed?
noyesIs the composition uniform?
noyes
Mixtures
• Variable combination of 2 or more pure substances.
Heterogeneous Homogeneous
Pure Substances
• Element– composed of identical atoms
– EX: copper wire, aluminum foil
Pure Substances
• Compound
– composed of 2 or more elements in a fixed ratio
– properties differ from those of individual elements
– EX: table salt (NaCl)
Physical Properties of Matter
• Melting Points
• Boiling Points
• Density
• Solubility
Melting and Boiling Points
• Use the Reference Tables to determine the following:– Rank the following substances from
smallest melting point to largest melting point:
H2O, N2, iron, lead, O2, C12H22O11
Reference Tables con’t
• What is the state of matter (solid, liquid, or gas) will each of the following substances at the given temperature?a. chlorine at -25 oCb. ethanol at 0 oCc. sodium chloride at 1500 oCd. methanol at -100 oCe. sulfur dioxide at 10 oC
Density
• Using the reference tables, determine the following:– Rank the following substances from
greatest density to smallest density:
H2O, Mg, C6H14, Pb, methanol, NaCl
Reference Tables con’t
• What is the mass of 36.5 mL of ethanol?
• What is the volume of 50.0 g of molten lead?
• You have 100.0 cm3 of glucose and sucrose. Which sample has the greatest mass? Support answer with calculations.