TEST QUESTIONS WITH 100%
CORRECT ANSWERS { GRADED A+}
a substance with regions of differing properties - ✔✔heterogeneous
a heterogeneous combination in which particles of one substance
are suspended in another - ✔✔colloid
a heterogeneous combination of substances that retain their
individual properties and can be separated - ✔✔mixture
the study of energy - ✔✔physics
the study of matter - ✔✔chemistry
the simplest homogeneous substance - ✔✔element
the smallest particle of an element that still retain sits chemical
and physical properties - ✔✔atom
, the total number of particles within an atom's nucleus - ✔✔mass
number
atoms of the same element with different masses - ✔✔isotopes
a homogeneous combination with a uniform consistency whose
components do not chemically combine in definite proportions -
✔✔solution
the mass of a quantity of atoms compared to the mass of the
same quantity of carbon-12 atoms - ✔✔atomic weight
the material which is dissolved in a solution - ✔✔solute
a bonded collection of two or more atoms - ✔✔molecule
the material in which another is dissolved in a solution -
✔✔solvent
the number of protons, the number of electrons, or an element's
number on aperiodic table - ✔✔atomic number
O - ✔✔oxygen
Au - ✔✔gold