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15 Cards in this Set

  • Front
  • Back
an element or a compound
if all the atoms in a substance are alike
a substance in which the atoms of two or more elements are combined in a fixed proportion
Heterogeneous mixture
a mixture in which different materials can be distinguished easily
Homogeneous mixture
contains two or more substances blended throroughly throughout
a homegenous mixture of particles so small that they cannot be seen with a microscope and will never settle to the bottom of their container
a type of mixture that never settles
Tyndall effect
scattering of light by colloidal particles
a heterogeneous mixture containing a liquid in which visible particles never settle
Physical property
any characteristic of a material that you can observe or attempt to observe without changing the identity of the substances that make up the material
Physical change
a change in size, state, or shape of matter
a process of seperating substances in a mixture by evaporating a liquid and recondensing its vapor
Chemical Property
a characteristic of a substance that indicates whether it can undergo a certain chemical change
Chemical change
a change of one substance to another
Law of conservation of mass
the mass of all substances that are present before a chemical change equals the mass of all the substances that remain after the change