Basic Chem Vocab Flashcards
(25 cards)
Endothermic
A process that absorbs heat
Exothermic
A process that releases heat
Concentration
How much of a substance in an amount of mixture
Salts
An ionic compound that dissolves in a solvent
Ion
An atom or molecule that has acquired a charge by either gaining or losing electrons
Element
A substance composed of atoms with identical atomic number
Products
A substance that is produced during a chemical reaction
Chemical reaction
A chemical change which forms new substances
Temperature
Measurement of the average kinetic energy of the particles in a substance
Dilute
Having a low concentration or lowering the concentration
Metalloids
An element with both metallic and nonmetallic properties. Found along stair step
Compound
A material formed from elements chemically combined in definite proportions
Mass
Amount of matter in a substance ( g or k)
Aqueous
A substance dissolved in water
Nonmetals
A substance that easily gains electrons to form negative ions. Found to the right of the stair step
Catalyst
A substance that increases the rate of a chemical reaction, without being consumed or produced
Centi-
One hundred of (1/100 or 0.01)
Metals
A substance that easily loses electrons to form positive ions. Found to the left of the stair step
Reactants
A substance that is consumed during a chemical reaction
Base
An ionic compound with an OH+ ion
Acid
An ionic compound with H+ ion
Weight
Mass times gravity (oz or lb)
Volume
The amount of space an object takes up
Milli-
One thousandth of (1/1000)
