Prelab 389R

Prelab 389R - b. Neither element is present in the ionic...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
KEY to PRELAB 389: Single Replacement Reactions And Relative Reactivity 1. a. 6M HCl is corrosive and toxic. It can cause chemical burns on your skin. Its vapors are also harmful, so working in a fume hood is required. If any acid is spilled, immediately start washing your hands with lots of water. Inform your TA as soon as possible. b. The surfaces of metals are vulnerable to reaction with the oxygen and water in the air, and an oxide layer can be formed which prevents the reagent from reacting with the metal in its elemental state. Sandpaper is used to remove the oxide coating before the metal strip is reacted with the reagent of choice. 2. a. Neither element is present in the elemental form, so it is not possible for an oxidation reaction (loss of electrons) to take place. No reaction would occur.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: b. Neither element is present in the ionic form, so it is not possible for a reduction reaction (gain of electrons) to take place. No reaction would occur. c. Yes. Zinc is more active than tin, it will transfer electrons to the Sn 2+ ions. A reaction would take place. Zn(s) + Sn 2+ (aq) Zn 2+ (aq) + Sn (s) d. No. Zinc is more active than tin; it would transfer electrons to the Sn 2+ ions. Tin cannot transfer electrons to Zn 2+ ions. There would be no reaction. 3. 2 HCl (aq) + Zn (s) H 2 (g) + ZnCl 2 (aq) 2 HCl (aq) + Pb (s) H 2 (g) + PbCl 2 (aq) 2 HCl (aq) + Cu (s) no reaction b. PbSO 4 (aq) + Zn (s) Pb (s) + ZnSO 4 (aq) PbSO 4 (aq) + Cu (s) no reaction c. Zn > Pb > H > Cu...
View Full Document

This note was uploaded on 02/21/2011 for the course CHEM 1280 taught by Professor Schmidt during the Fall '07 term at Toledo.

Ask a homework question - tutors are online