UA-1 Study Guide

A pure silver ring in classified as a..

• Compound

• Element

• Element and Compound

• Heterogenous Mixture

Pure water is a..

• Element

• Compound

• Heterogenous Mixture

• Element and Compound

Sand found on a beach can be a..

• Element

• Compound

• Homogeneous Mixture

• Heterogenous Mixture

Air containing only O₂ and N₂ is classified as a?

• Element

• Compound

• Homogenous Mixture

• Heterogenous Mixture

True or False: Mixtures must be uniformed throughout the mixture to be classified as a homogenous mixture

• True

• False

NaCl (Table Salt) dissolves in water is a...

• Physical Change

• Chemical Change

When I freeze water, what type of change is that?

• Physical Change

• Chemical Change

When wood burns and you smell smoke is a...

• Physical Change

• Chemical Change

What type of change is baking soda reacting with vinegar?

• Physical Change

• Chemical Change

A physical change is a ___________ change.

A chemical change is a _____________ change.

• Physical: Reversible Change

  Chemical: Irreversible Change

• Physical: Irreversible Change

  Chemical: Reversible Change