Use the half-reactions of the reaction Au(OH)3 + HI — Au + 12 + H20 to answer the questions. Reduction half-reaction: +3
Au
Oxidation half-reaction:
+ 3e → Au
:21 12
+ 2e
How many electrons does each gold atom gain?
How many electrons does each iodine atom lose?
What is the total number of electrons that are moved in the oxidation-reduction reaction?
Complete the final balanced equation based on line half-reactions.
| Au(OH)3+
HI
Au +
11+ H₂O

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size