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Matter & Measurement
Chemistry 221 Chapter 1
Question | Answer |
---|---|
What properties of matter can be observed and measured WITHOUT changing the composition of the matter? | The PHYSICAL Properties |
What physical properties do NOT depend on the amount of substance. Examples: Color, physical state at given temperature, and density. | INTENSIVE Physical properties |
What state of matter has rigid shape and fixed volume? | Solid |
What state of matter has fixed volume but adopts the shape of their container? | Liquids |
What state of matter has no fixed volume and fills the container. | Gas |
Pure substances that contain only one type of atom. | Elements |
Discrete groups of atoms linked by chemical bonds are known as | molecules |
A pure substance containing more than one type of atom | Compound |
What is the Kinetic Molecular Theory? | model of the behavior of submicroscopic particles in matter |
According to the Kinetic Molecular Theory... Solids | particles are close together and they vibrate around fixed positions |
According to the Kinetic Molecular Theory... Liquids | particles are close together but they move freely about one another. |
According to the Kinetic Molecular Theory... Gas | particles are widely separated and move in straight line paths |
Heat can be defined as |