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chemistry

TermDefinition
chemistry the study of composition, structure, properties, and reactions of matter
Matter another word for all substances that make up our world. Antacid tablets are matter. Water is matter. Glass is matter. Air is matter.
Chemicals substances that have the same composition and properties wherever found often substances made by chemists that you use every day
graph represents the relationship between two variables contains two perpendicular axes has a horizontal axis or x axis has a vertical axis or y axis
Is light a chemical no
Measured numbers the numbers obtained when you measure a quantity such as your height, weight, or temperature.
significant figures (SFs all the digits including the estimated digit. used to represent the amount of error associated with a measurement
Exact numbers not measured and do not have a limited number of significant figures do not affect the number of significant figures in a calculated answer
The amount of space occupied by a substance is its volume
Equalities use two different units to describe the same measured amount ex: 60 min=1 h or 1m=100cm
Solids a definite shape a definite volume particles that are close together in a fixed arrangement particles that move very slowly
Liquids an indefinite shape but a definite volume the same shape as their container particles that are close together but mobile and move slowly
Gases an indefinite shape an indefinite volume the same shape and volume as their container particles that are far apart but move very fast
Created by: 1149820044