CHEM 1020 REVIEW SHEET 2026 FULL
SOLUTION GUARANTEED PASS
◉ Mixture. Answer: A combination of two or more substances that
are not chemically combined.
◉ Homogeneous. Answer: A single-phase combination of solids,
liquids, or gases with a uniform distribution of its constituents
throughout the substance.
◉ Heterogeneous. Answer: A single-phase combination of solids,
liquids, or gases that are not uniformly distributed throughout the
substance.
◉ Solution. Answer: A homogeneous (of uniform composition)
mixture of a solvent and one or more solutes.
◉ Atom. Answer: The smallest building block that can exist as a
stable, independent entity.
◉ Element. Answer: One of the 100 or so pure substances in our
world from which compounds are formed. Elements contain only
one type of atom.
, ◉ Compound. Answer: A pure substance that is comprised of two or
more different types of atoms in a fixed, characteristic chemical
combination.
◉ Molecule. Answer: Two or more atoms held together by chemical
bonds in a certain spatial arrangement.
◉ Chemical formula. Answer: A symbolic way to represent the
elementary composition of a substance. It reveals both the elements
present (by chemical symbols) and the atomic ratio of those
elements (by the subscripts).
◉ Molecular compound. Answer: A pure substance that contains two
or more atoms from nonmetallic elements.
◉ Ionic compound. Answer: A compound composed of ions that are
present in fixed proportions and arranged in regular, geometric
structure.
◉ Allotropes. Answer: Different structural forms of the same
element.
◉ The names of Groups 1 and 2. Answer: Group 1 - Alkali metals.
Group 2 -Alkaline earth metals.
SOLUTION GUARANTEED PASS
◉ Mixture. Answer: A combination of two or more substances that
are not chemically combined.
◉ Homogeneous. Answer: A single-phase combination of solids,
liquids, or gases with a uniform distribution of its constituents
throughout the substance.
◉ Heterogeneous. Answer: A single-phase combination of solids,
liquids, or gases that are not uniformly distributed throughout the
substance.
◉ Solution. Answer: A homogeneous (of uniform composition)
mixture of a solvent and one or more solutes.
◉ Atom. Answer: The smallest building block that can exist as a
stable, independent entity.
◉ Element. Answer: One of the 100 or so pure substances in our
world from which compounds are formed. Elements contain only
one type of atom.
, ◉ Compound. Answer: A pure substance that is comprised of two or
more different types of atoms in a fixed, characteristic chemical
combination.
◉ Molecule. Answer: Two or more atoms held together by chemical
bonds in a certain spatial arrangement.
◉ Chemical formula. Answer: A symbolic way to represent the
elementary composition of a substance. It reveals both the elements
present (by chemical symbols) and the atomic ratio of those
elements (by the subscripts).
◉ Molecular compound. Answer: A pure substance that contains two
or more atoms from nonmetallic elements.
◉ Ionic compound. Answer: A compound composed of ions that are
present in fixed proportions and arranged in regular, geometric
structure.
◉ Allotropes. Answer: Different structural forms of the same
element.
◉ The names of Groups 1 and 2. Answer: Group 1 - Alkali metals.
Group 2 -Alkaline earth metals.
