Metals and the Reactivity Series

Flashcards covering key concepts related to the reactivity of metals with oxygen and water, including observations and reactions.

What are the reaction products when potassium reacts with oxygen?

Potassium burns with a lilac flame to form potassium oxide.

What gas is produced when metals react with water?

Hydrogen gas is produced.

Which metals are stored under oil to prevent reactions with air?

Potassium and Sodium are stored under oil.

What observation is made when sodium reacts with water?

Sodium moves about the surface, fizzes, and burns with a yellow flame.

What happens when magnesium is reacted with steam?

Magnesium glows and forms magnesium oxide while producing hydrogen.

What is the equation for the reaction of calcium with water?

Ca + 2H2O → Ca(OH)2 + H2.

What type of reaction occurs when metals react with water?

Metal + Water → Metal Hydroxide + Hydrogen.

What observation can be made when zinc reacts with steam?

Zinc glows to form a yellow powder that changes to white on cooling.

What is a potential risk when conducting experiments with steam and metals?

There is a risk of 'suck-back' when heating stops.