Terms:
Matter-- occupies space & has mass.
Element-- simplest form of matter, cannot be further simplified. See periodic chart.
Compound-- Two or more elements chemically combined.
Mixture-- an intermingling of substances. No chemical bonding. Sand, water, gravel.
...Homogeneous-- The same throughout
...... Homogenized milk
...... All solutions.
...Heterogeneous-- Non-uniform
...... A mixture of chips, raisins, nuts
...... The Romiso Egg Sandwich
...... The Romiso expectorate.
Physical Properties-- Do not change the substance. A beaker, a broken beaker. Ice, Water, Vapor (still H2O).
Chemical Properties-- Change atomic structure. Explosive, combustible, corrosive, acidic, basic, oxidizer.
Evidences of a Chemical Change:
...Gas Produced
...Heat added or absorbed
...Light added or absorbed
...Precipitation (solid formed)
...Electricity added or absorbed
...Explosion (fast gas)
...Color Change
...Odor change
...New substance formed
...Water formed
Calorimetry:
Heat Lost = Heat Gained
Q = mcDt
Where
Q = the heat energy
m = the mass in grams
c = the specific heat in J/g.Co
Δt = the temperature change