Chapter Three
Matter, Properties, and Changes
Properties of Matter!
Solids, Liquids, and Gases
Matter
Extensive and Intensive Properties
Heterogeneous & Homogeneous
Separating Mixtures.
Elements and Compounds
Law Of Definite Proportions & Law Of Multiple Proportions !
Law of multiple proportions state that when different compounds are formed by a combination of the same elements, different masses of one element combine with the same relative mass of the other element in a ratio of small whole numbers
Line Graph
In chemistry, most graphs that you create and interpret will be line graphs. The points on a line graph represent the intersection of data for two variables. The independent variable is plotted on the x-axis. The dependent variable is plotted on the y-axis. Remember that the independent variable is the variable that a scientist deliberately changes during an experiment.
Bar Graph
A bar graph often is used to show how a quantity varies with factors such as time, location, or temperature. In those cases, the quantity being measured appears on the vertical axis (x-axis) . The independent variable appears on the horizontal axis (y-axis). A bar graph can be used to compare population figures for a country by decade.
Circle Graph
The circle graph is sometimes called a pie chart. This graph is useful for showing parts of a whole. The parts are usually labeled as percents with the circle as a whole representing 100%.