Chapter 1 Flashcards
(28 cards)
The process by which one or more substances change to produce one or more different substances
Chemical reaction
Any substance that has a definite composition. Made of the same stuff no matter where it comes from. (Water, carbon dioxide..)
Chemical
Physical forms of matter. Solid liquid gas plasma
States of matter
Fixed volume, not a fixed shape
Liquid
Fixed volume and shape
Solid
Neither fixed volume nor fixed shape
Gas
A gas whose particles have broken apart and are charged
Plasma
Changes in which the identity of a substance does not change
Physical change
Substances right of the arrow?
Substances left of the arrow?
Products,
Reactants
Space an object occupied
Volume
Quantity of matter contained in an object. (How much stuff is inside?)
Mass
Force produced by gravity acting on mass.
Weight
Weight of an object is affected by its___ in the universe. Mass remains the same.
Location
Something that has magnitude, size, or amount
Quantity
A quantity adopted as a standard of measurement
Unit
King Hector Drank Dark Chocolate Milk:
Kilo, hecto, deka, deci, centi, milli.
10^3 10^2 10^1 10^-1 10^-2 10^-3
Ratio that relates two units that express a measurement of the same quantity
Conversion factor
Mass divided by volume
Density
Smallest unit of an element that maintains the properties of that element
Atom
Single element or single compound that has definite chemical and physical properties
Pure substance
Pure substances that contain only one kind of atom
Element
2+ atoms combined in a definite ratio
Molecule
Elements consisting of two atoms (oxygen, nitrogen, chlorine, hydrogen)
Diatomic
One of a number of different molecular forms of an element. (Ozone: toxic, pale blue. Oxygen: colorless, odorless, essential)
Allotrope
