Chemistry before learning electrolite and non electrolite

The anion formed when CuCl2 is ionized in water is. . . .

• Cu+

• Cu2+

• Cl-

• Cl2-

Which of the following solutions is the best electrical conductor?

• ethanol solution

• nitric acid solution

• distilled water

• sugar solution

The correct ionization reaction for the compound H3PO4 is. . .

• 
• 
• 
• 

Compounds with polar covalent bonds that can conduct electric current are. . .

• HCl

• HBr

• NaCl

• NH3

Ionic compound crystals have ions that cannot move freely. These ions can move freely if . . . .

• Cooled

• Crystallized

• Melted

• Precipitated

When conducting electricity through a ZnBr2 solution, Br- ions will release electrons to . . . .

• Anions

• Cations

• Cathode

• Anode

Below are included in the conductors. . .

• Copper, Ion, and Glass

• Rubber, Wood, and Plastic

• Diamonds, Rubber, and Iron

• Copper, Iron, and Steel

The oxidation number of aluminum in Al2O3 is . . .

• -2

• -3

• +2

• +3

The oxidation number I in the IO3- ion is...

• +3

• -3

• +5

• -5

If a compound has an ionization degree of 0.5 then in that compound what occurs is ...

• No substances ionize

• All substances are dispersed into molecules

• Some substances break down into ions

• All substances break down into ions