(DONE) Lab 6 prep

Question 1

define oxidation-reduction reactions

Answer 1

• aka electron transfer reactions

- species transfer electrons from one another

Question 2

define: oxidizing agent and reducing agent

Answer 2

oxidizing agent causes the oxidation

reducing agent causes the reduction

Question 3

Be able to write out the equations from part a

Answer 3

see lab manual

Question 4

define: decant; in part A, how many times do you decant?

Answer 4

• pour off slowly from one container to another
• 5 times: once to decant after Cu solid forms, twice after rinsing the copper with water, and twice more when you rinse with ethanol

Question 5

When weighing your beaker of solid cu, the beaker should not be ____

Answer 5

warm

Question 6

For part b, the test tubes should be ____ and the metal strips should be _______ with a __________ ontop of a ______

Answer 6

• clean
• lightly polished
• Scotch Brite pad
• wooden block

Question 7

define: immiscible

Answer 7

(of liquids) not forming a homogeneous mixture when added together

Question 8

heptane should be poured into a

Answer 8

• labelled 100mL beaker for heptane waste then into the main container for heptane waste

Question 9

all reactions for part c should be performed __________

Answer 9

under the ventilation hood