View the movie on the right2H2(g) + O2(g) ---> 2H2O(g) |
View the movie on the right2Al(s) + 3Br2(l) ---> 2AlBr3(s) |
View the movie on the right and answer the following three questions:1. Identify the chemical species present in the solution poured into the beaker on the left in the movie. Answer2. Identify the chemical species present in the solution poured into the beaker on the right in the movie. Answer3. What evidence is there for a chemical reaction when the two solutions are mixed? Answer |
yellowish |
clear |
reddish-brown |
In the movie equal samples of the reaction mixture are added to two petri dishes.To the solution in the petri dish on the left several drops of Fe3+ are added.Describe what you observe when the Fe3+ is added to the solution in the petri dish.What chemical species must have been formed to account for your observation?What chemical species did the Fe3+, that was added to the solution in the petri dish, react with to produce the change you observed?Answer |
In this movie equal samples of the reaction mixture were added to two petri dishes. To the petri dish on the left several drops of Fe3+ have been added.To the solution in the petri dish on the right several drops of SCN- are added.Describe what you observe when the SCN- is added to the solution in the petri dish.What chemical species must have been formed to account for your observation?What chemical species did the SCN-, that was added to the solution in the petri dish, react with to produce the change you observed?Answer |
Describe what you observe when the F- is added to the solution in the beaker.Explain why the solution changes color.Answer |