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Question 1

is a combining of two or more atoms tightly bonded together in a covalent bonding.

Answer 1

MOLECULE

Question 2

any molecule that is made up of two atoms only.

Answer 2

DIATOMIC MOLECULE

Question 3

are chemical formulas that indicate the “actual” number and types of atoms in a molecule.

Answer 3

MOLECULAR FORMULAS

Question 4

are chemical formulas that give only the “relative” number of atoms of each type in a molecule.

Answer 4

EMPIRICAL OR SIMPLEST FORMULAS -

Question 5

is a shorthand representation of the composition of substance using atomic symbols and numeric subscripts. It is a representation of a “formula unit” of a compound -not just a molecule.

Answer 5

CHEMICAL FORMULA

Question 6

are formulas that indicate the exact number and types of atoms present in a molecule & how the atoms bonded to each other.

Answer 6

STRUCTURAL FORMULAS

Question 7

are the electrically charged atom or group of atoms. An ion with a positive charged (+) is called a cation; a negatively charged (-) ion is called an anion.

Answer 7

IONS

Question 8

are ions consist of atoms joined together as in a molecule, but they have a net positive or negative charged. They are ions composed of two or more atoms.

Answer 8

POLYATOMIC IONS OR RADICALS

Question 9

are compounds that contain positively charged ions and negatively charged ions. Consequently, ionic compou

Answer 9

IONIC COMPOUNDS

Question 10

are ionic compounds composed of two different kinds of atoms or elements.

Answer 10

BINARY COMPOUNDS

Question 11

are compounds composed of three or more elements combined in a definite proportion, where the combining ions are usually the polyatomic ions.

Answer 11

POLYATOMIC COMPOUNDS

Question 12

are elements having two (2) valence numbers and can form two different ions.

Answer 12

BIVALENT ELEMENTS

Question 13

are elements having three (3) or more valence numbers and can form more than two (2) different ions.
E.g. most transition metals and other non-metals.

Answer 13

MULTIVALENT ELEMENTS

Question 14

are acids composed of a hydrogen ion and a non-metal ion only. These are acids that do not contain an oxygen atom in its chemical formula.

Answer 14

BINARY ACIDS

Question 15

are acids that are composed of three elements, and the third element is an oxygen atom. These are acids that contain a polyatomic anion as its negatively charged ion.

Answer 15

OXY-ACIDS OR OXO-ACIDS OR TERNARY ACIDS -

Question 16

is a term that refers to methods of naming chemical compounds.

Answer 16

CHEMICAL NOMENCLATURE

Question 17

IUPAC

Answer 17

INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY