Matter Practice Problems

Directions: Complete the following problems then return to the answer page for the key.

 

1.        Classify each as heterogeneous mixtures, solutions, compounds, or elements;

a.        air

b.       ink

c.        paper

d.       salt

e.        zinc

f.         apple

g.       milk

h.       plutonium

i.         water

j.         ethyl alcohol

 

2.        Classify as physical or chemical properties:

a.        flammability

b.       odor

c.        ductility

d.       solubility

e.        rusting

f.         expansion

g.       reactivity

h.       viscosity

 

3.        Classify as a physical or chemical change:

a.        pumping out an oil well

b.       distillation of crude oil

c.        burning of gasoline

d.       grinding up meat

e.        chewing meat

f.         digesting food

g.       baking bread

h.       burning toast

i.         cooking an egg

j.         breaking an egg

 

4.        Classify each as an element, compound, or mixture:

a.        water

b.       dry ice (carbon dioxide)

c.        salt

d.       boron

e.        alcohol

f.         diamond

g.       salted popcorn

h.       sugar

i.         coca-cola