science test study guide - maddie

how many elements are in the reactivity series

• 18

• 13

• 15

• 12

what is a displacemnt reaction

• when one metal in an equation is more reactive than the other and can displace

• when you add or take away electrons in an atom

• when two atoms share electrons in order to have full outer shells

can iron displace copper from from copper sulfate solution?

or in other words

copper sulfate + iron, can you displace it?

• No, you can't displace it

  copper sulfate + iron --> X

• Yes, you can displace it

  copper sulfate + iron --> iron sulfate + copper

can copper displace silver from from silver nitrate solution?

or in other words

copper + silver nitrate, can you displace it?

• No, you can't displace it

  copper + silver nitrate --> X

• Yes, you can displace it

  copper + silver nitrate --> copper nitrate + silver

can magnesium displace zinc from from zinc nitrate solution?

or in other words

magnesium + zinc nitrate, can you displace it?

• No, you can't displace it

  magnesium + zinc nitrate --> X

• Yes, you can displace it

  magnesium + zinc nitrate --> magnesium nitrate + zinc

when a metal is reacted with _________ it creates salt

• hydrochloric acid

• hydrogen gas

• methane gas

what is the name of this salt

MgCl^2

(^2 means the tiny number 2)

• magnesium chloride

• zinc chloride

• hydrogen gas

what is the name of this salt

ZnCl^2

(^2 means the tiny number 2)

• magnesium chloride

• zinc chloride

• hydrogen gas

what color is copper

• blue

• silver

• brownish orange

• red purple

which is least reactive in the reactivity sequence

• lead

• iron

• platinum

• potassium