1. (1 point) What is the correct formula for sodium sulfate?
   

NaHSO₃

NaHSO₄

Na₂SO₃

Na₂SO₄

1. (1 point) Binary molecular compounds are made of two __________.
   

metalloid elements

metallic elements

nonmetallic elements

polyatomic ions

1. (1 point) Which of the following correctly shows a prefix used in naming a binary molecular compound along with its corresponding number?
   

penta- , 6

hexa- , 4

deca - , 8

nona- , 9

1. When the name of the anion that is part of an acid ends in – ate the acid name includes the suffix ____.
   

-ous

-ic

-ate

-ite

1. (1 point) In any chemical compound, the elements are always combined in the same proportion by ______.
   

mass

density

charge

volume

1. (1 point) Avogadro’s number of representative particles is equal to one _______.
   

Kelvin

mole

gram

kilogram