Question 37
A teacher provides three equal 3-cm pieces of magnesium ribbon: A is a straight strip, B is cut into small pieces, and C is folded in layers. Wearing goggles and gloves, put 25 cm³ of dilute sulfuric acid into each labelled conical flask. Add the corresponding magnesium sample and start a stopwatch immediately. Record the time for the magnesium to disappear completely. Work under teacher supervision, away from flames; hydrogen gas is produced.
Did your results support your predictions? Were any of your results surprising? Give possible reasons for any differences you notice.
Did your results support your predictions? Were any of your results surprising? Give possible reasons for any differences you notice.
