Reactions of Alkali Metals LAB

When you compare reactivities of lithium , sodium , potassium and rubidium ______ will be least reactive out of four.

Lithium

What is the right formula for sodium oxide?

Na2O

All of alkali metals are stored in oil because they ______

React with oxygen and moisture in air

What is the color of Li flame test?

Red

What is the color of chlorine gas (C12)?

Yellowish green

When lithium, sodium, and potassium are burned in air, their ashes are ______

Lithium oxide, sodium oxide, and potassium oxide.

Old lithium and potassium metals look dark outside. However if you cut them, the sliced sides will be shiny because ______.

They are new

What is the color of sodium ion flame?

Yellow

A small piece of sodium metal can cut with a razor blade.

True

If you mix sodium oxide with water, then it will become alkaline because _____.

The reaction will produce hydroxide ions.