21. which of the following is not true about covalent compounds?
a. covalent compounds are insulators
b. covalent compounds forms for ionic bonding.
c. covalent compounds forms covalent bonding.
d. unlike ionic compounds, covalent compounds are poor conductors of heat.
22. which of the following is not an example of ionic compounds?
a. agua oxigenada
b. baking soda
c. chalk and marker
d. sugar
23. what is the electronegativity difference of polar covalent compounds?
a. equal to 0.4 or less
b. less than 1.9 and more than 0.4
c. more than 1.4 and less than 0.4
d. more than 2.0
24. which of the following substances when dissolved in water conducts electricity?
a. oil
b. powder
c. salt
d. sugar
25. which of the following compounds have low melting point.
a. covalent compounds
b. ionic compounds
c. simple compounds
d. chemical compounds​