Terms in this set (22)
qualities used to identify or differentiate between substances
The amount of matter in an object
The mass of an object divided by its volume
the amount of solute that will dissolve into a solvent (usually a solid dissolving into a liquid)
boiling point/melting point
The temperature when an object begins to boil (change from liquid to gas) or melt (change from solid to liquid)
A homogeneous (solute is evenly dissolved into the mixture example: salt water) mixture of 2 or more substances
The smallest possible unit of matter that still maintains an element's identity during chemical reactions; a nucleus surrounded by electrons.
A pure substance that cannot be decomposed (broken up into other substances); It is made up of only 1 kind of atom (Hydrogen, Oxygen, Iron)
A group of elemental atoms linked together by covalent bonds
A substance formed by the chemical combination of two or more elements
two or more substances that are
mixed together, but not chemically
the measure of the force of gravity on an object
the amount of space that matter occupies SI units Liter (L)
a small part of something. They include protons, neutrons and electrons
an element found to the left side of the periodic table. They are good conductors of heat and electricity.
an element found to the right side of the periodic table. They are poor conductors of electricity.
is a process in which substance undergo chemical changes, forming new substances with new characteristic properties.
the particles in an atom that have a positive charge
the particles in an atom that have a neutral charge
the negatively charged particles of an atom
the number of protons in the nucleus of an atom
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom
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