Course Activity_ Oxidizing and Reducing Chemicals 2.pdf -...

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Task 2Measuring Changes in MassIn this task, you’ll analyze the metal strips from test tubes 1 and 5 in task 1 to determine whatkinds of changes occurred to them. If you need a refresher on using the electronic balance, watchthis video about measuring mass .Estimated time to complete: 45 minutesIf you’ve purchased an Edmentum lab kit, remove the items that appear in the equipment list.You’ll also need distilled or tap water and paper towels for cleanup.You’ll need these materials:electronic balanceErlenmeyer ±askfunnel²lter paperwash bottle with distilled water (tap water is acceptable but may skew experimental results)forcepstest tube brushaprongogglesglovespaper towelsAlways work safely:Keep lids on the chemical bottles at all times, except when you’re actively dispensing from abottle.Wear an apron, goggles, and gloves anytime you’re working with chemicals, including duringdisposal procedures.Don’t mix chemicals together except as instructed in the laboratory procedure.If a chemical splashes into your eyes, immediately remove any contact lenses and ±ush youreyes with running water for at least 15 minutes. Seek medical attention.

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