Sci 20-4 Unit A Review

Synthetics are generally...

• Naturally occurring

• Human made

• Organic

• Imaginary

Which of the following is used to help grow bigger and healthier plants?

• Insects

• Pesticide

• Fertilizer

• Herbicide

Examples of polymers are..

• plastic milk cartons

• white glue

• borax

• Copper

What does this WHMIS symbol mean?

• oxidizing hazards

• fire hazards

• corrosive damage to metals, as well as skin, eyes

• explosion or reactivity hazards

Identify the WHMIS symbol by choosing the description of the hazard.

• organisms or toxins that can cause diseases in people or animals

• corrosive damage to metals, as well as skin, eyes

• oxidizing hazards

• explosion or reactivity hazards

Which of the following is a corrosive substance?

• plastic

• salt

• water

• ammonia

In a combustion reaction, the reactants are fuel and ____________

• water

• nitrogen

• oxygen

• paper

A word equation the _______ are on the left side and the _________ are on the right side.

• reactants, product

• products, reactants

• objects, stuff

The products of a combustion reaction are ___________ and ___________

• oxygen and fire

• water and oxygen

• carbon dioxide and water

A simple composition reaction combines ___________ to form a ____________

• elements, compound

• compounds, elements

• elements, elements

• compounds, compounds