Question 1:
Answer 1:
The mixture of ammonium vanadate, ammonium hydroxide, and hydrochloric acid was yellowish and had less color in comparison with the control.
As Manganese sulfate was mixed with ammonium hydroxide turned into orange, Though as it was mixed with hydrochloric acid its color did not changed and stayed clear.
The control of iron nitrate was orange, but as it was mixed with ammonium hydroxide the color changed into red and after mixing with hydrochloric acid the color was yellow.
The control of cobalt nitrate was pink. When it was mixed with hydrochloric acid the color did not change but as it was mixed ammonium hydroxide, the color turned into purple.
The control of copper nitrate was clear. It was mixed with hydrochloric acid the color did not change but as it was mixed ammonium hydroxide, the color turned into blue.
The control of zinc nitrate was also clear. It was mixed with hydrochloric acid the color did not change but as it was mixed ammonium hydroxide, the structure changed into a hard structure, like a crystal.
Question 2:
For each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table.
Answer 2:
Ammonium Vanadate seems to be a post transition metal. Manganese sulfate’s transition atoms are more than transition atoms. The other transition metals are: Iron nitrate, copper nitrate, cobalt nitrate, and zinc nitrate
Question 3:
Were there any metallic compounds that did not react with either the acid or the base? Write the type of metal, based on your examination of the periodic table.
Answer 3:
Among metallic compounds only potassium nitrate and calcium nitrate did not react.
Question 4:
Make a general statement about the reactivity of the metals in this experiment.
Answer 4:
During this experiment all transition metals had a reaction as they were mixed with the other substance. However potassium nitrate which is an alkali metal and calcium nitrate which is an alkaline earth metal had no reaction at all.
