Our Physical World test 3
Concentration
A measurement of the amount of solute dissolved in a solution
Impurity
A substance
Bonding
Atoms joining together
Bitter
Bases usually taste like this
Bromothymol blue
Blue in color. Used to determine how acidic something is
Base
Dissolve fats and oils, contain oxygen and hydrogen
Heat
Energy of a system caused by the continuous motion of its particles and takes into account temperature and mass
Constellation
Groups of stars form this
Dilute
Little solute dissolved
Concentrated
Lots of solute dissolved
Element
Made up on different kinds of atoms
Atom
Main building blocks of matter
Degree
Measures temperature
Electrons
Negatively charged particles
Coefficient
Numbers written in front of the symbols and formulas
Gas
Phase that is not liquid of solid
Acid
Reacts with metals and contain hydrogen
Boiling point elevation
Refers to the phenomena by which a boiling point temperature will be raised when an impurity is added
Binary compound
Substance containing two different elects chemically combined
Compound
Substances containing two or more different elements chemically combined
Boiling point
Temperature at which something changes rapidly from a liquid to a gaseous state
Evaporation
The changing of a liquid into a gas
Freezing point depression
The phenomena by which the freezing point temperature will be lowered when an impurity is added
Freezing point
The temperature at which a substance changes from a liquid to a solid
Absolute zero
Theoretical temperature,motion of particls would stop
Calorie
Unit of energy
Celsius
Unit of temperature (metric)
Fahrenheit
Unit of temperature in the u.s.
Chemical equation
Used to show changes that occur during a chemical change or reaction
