Excess copper reacts with 170. g of silver nitrate to produce copper (II) nitrate and silver. Determine the % yield of Cu(NO3)2 if the actual yield is 46.9g.

Which of the following pairs of elements belong to the same groupa. h and he b. li and bec. c and pb d. ga and ge

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.

What is the average rate of the reaction between 10 and 20 s?