Chemistry Flashcards
(109 cards)
Water use controlled by the actual end user
Direct water use
No fixed volume or shape
Gas
Definite volume but no fixed shape
Liquid
Fixed volume and fixed shape
Solid
Water found on top of the ground
Surface water
Water collected underground in porous rock
Ground water
Separating liquid substances based on differences in their boiling points
Distillation
Separating solid particles from a liquid by passing the mixture through a material that retains the solid particles
Filtration
Water changing from a liquid to a gas state, leaving impurities dissolved in it behind
Evaporation
Properties that can be observed and measured without changing the chemical makeup of the substance
Physical properties
Physical properties
Density Color Melting point Taste Odor Boiling point
Contains relatively larger particles that settle out
Suspension
Contains particles large enough to reflect light but too small to settle out
Colloid
Contains particles uniformly spread throughout too small to reflect light or settle out
Solution
Anything that occupies space and has mass
Matter
The smallest particle possessing the properties of an element
An atom
Matter that is made up of only one kind of atom
Element
A substance composed of atoms of two or more elements
Compound
The smallest individual particle of a compound that retains the properties of that compound
Molecule
The starting substances in a chemical equation
Reactants
The substances formed in a chemical equation
Products
Like charges
Repel
Unlike charges
Attract
Are positively charged and found in the nucleus
Protons