Question

a molecule is composed of two or more atoms joined together by ionic bonds. *
true
false

blue litmus paper turns red in hcl(aq). *
true
false

acids are characterized by a bitter taste. *
true
false

bases have a ph that is less than 7. *
true
false

a binary ionic compound is composed of two metal cations *
true

Explanation:

1. A molecule is composed of atoms joined by covalent bonds, not just ionic bonds. So the first statement is false.
2. Blue litmus paper turns red in acidic solutions, and HCl(aq) is an acid. So the second statement is true.
3. Acids are characterized by a sour taste, not a bitter taste. So the third statement is false.
4. Bases have a pH greater than 7, not less than 7. So the fourth statement is false.
5. A binary ionic compound is composed of a metal cation and a non - metal anion, not two metal cations. So the fifth statement is false.

Answer:

1. B. False
2. A. True
3. B. False
4. B. False
5. B. False