CC10 and 11

What does electrolysis mean?

• Splitting by electricity

• Adding by electricity

• Splitting the atom

• Electric shock

Electrodes are usually?

• Short

• Always positive

• Positive and negative

• Always negative

What do we call the positive ions in the electrolyte solution

• Cation

• Cathode

• Anion

• Anode

What doe we call the substance that is being broken down by electrolysis?

• Anode

• Cathode

• Electrolyte

• Anion

The reactivity series shows us what?

• The mass of metals

• How reactive metals are

• Types of reactions

• What metals react with strong acids

If you react a metal and cold water, what gas do you produce?

• Air

• Hydrogen

• Oxygen

• Carbon dioxide

Metals that react with acid will form what?

• A salt solution

• Metal hydroxide

• Metal oxide

• Oxygen

Displacement means?

• More reactive metals are replaced with less reactive metals

• Less reactive metals are replaced with unreactive metals

• Less reactive metals are replaced with more reactive metals

• Nothing happens

The process of obtaining a metal from its ore is called what?

• Reduction

• Oxidation

• Reactiveness

• Extraction

During electrolysis of a substance, where do new substances form?

• Power supply

• Electrodes

• Beaker

• On the test tubes