Asolution contains some or all of the ions cu2+, al3+, k+, ca2+, ba2+, pb2+, and nh4+. the following tests were performed, in order, on the solution. addition of 6 m hcl produced no reaction. addition of h2s with 0.2 m hcl produced a black solid. addition of (nh4)2s produced a white solid. addition of (nh4)2hpo4 in nh3 produced no reaction. the final supernatant when heated produced a purple flame. identify which of these ions were present in the solution, which were absent, and for which ones no conclusions can be drawn.
Answers: 1
Chemistry, 21.06.2019 15:50
Nitrogen dioxide reacts with water to form nitric acid and nitrogen monoxide according to the equation: 3no2(g)+h2o(l)→2hno3(l)+no(g) part a suppose that 4.2 mol no2 and 0.50 mol h2o combine and react completely. which reactant is in excess? express your answer as a chemical formula. nothing
Answers: 1
Chemistry, 22.06.2019 11:30
What is the main reason why some developing countries fear the increase the free trade policies around the world?
Answers: 2
Chemistry, 22.06.2019 13:30
An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum
Answers: 1
Asolution contains some or all of the ions cu2+, al3+, k+, ca2+, ba2+, pb2+, and nh4+. the following...
Mathematics, 30.10.2021 04:40
History, 30.10.2021 04:40
Mathematics, 30.10.2021 04:40
Social Studies, 30.10.2021 04:40
Biology, 30.10.2021 04:50
Biology, 30.10.2021 04:50
Mathematics, 30.10.2021 04:50
Mathematics, 30.10.2021 04:50
Social Studies, 30.10.2021 04:50
Mathematics, 30.10.2021 04:50