Pre-Lab - Chemical Activity

Which term is used when a chemical is dissolved in water?

• Precipitate

• NR

• Ionized

• Aqueous

The MORE reactive metal

• will be chemically bonded to another substance forming a compound.

• will be the precipitate

How many drops of liquid should you put on each of your metals?

• 8

• 12

• 5

• 3

If a precipitate forms, you have a reaction.  The precipitate in this lab will be a metal.  That precipitate is _______ reactive than your original metal.

• less

• more

Which metal from this lab is going to be the LEAST reactive?

• Copper

• Zinc

• Silver

• Magnesium

How should you clean your well plate at the end of the lab?

• Leave it out, uncleaned, for the next class.

• Empty it into the sink, then dry with a paper towel.

• Use a wash bottle and empty it into a metal trash can, then dry with a paper towel.

Which chemical is poisonous if ingested and will stain your skin and clothing?

• zinc nitrate

• Magnesium nitrate

• Copper nitrate

• silver nitrate