Chemistry Quiz Week #1

1. Classify the following as either a chemical or physical change. 

Burning Wood =Chemical

Crushing a Rock =physical

Dissolving  Sugar in water =Physical

The rusting of Iron =chemical

2. Classify the following as to whether or not they are pure substances or mixtures. 

Milk =mixture

Table Salt =mixture

Sugar =pure

Steel =mixture

3. A cup of black coffee is considered to be Homogeneous and a/an impure substance. 

4. The boiling of water is considered to be a physical change and the temperature at which water boils is considered to be a physical property.