Chemistry, 27.08.2021 20:50, barkonatree
In the laboratory, you are given an unknown solution containing only three ions. You use the following qualitative analysis scheme: First, to a test tube labeled #1 containing all three ions, you add 6 M HCl and a precipitate forms. Next, you decant the remaining solution into a clean test tube labeled #2, and then add H2S and 0.2 M HCl and a precipitate forms. Finally, you decant the remaining solution into a clean test tube labeled #3 and add (NH4)2S at pH 8 and a precipitate forms. Which of the following lists three ions that could have been in your unknown solution?
a. Ag+, Mg2+, and K+
b. Ag+, Cu2+, and Ca2+
c. Ag+, Cu2+, and Na+
d. Ag+, Cu2+, and Fe3+
Answers: 2
Chemistry, 22.06.2019 04:00, breannaasmith1122
Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.
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Chemistry, 22.06.2019 11:50, trinityrae4657
Acompound has a molecular weight of 12.124 atomic mass units and the empirical formula c3h40. what is the molecular formula of the compound?
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Chemistry, 22.06.2019 12:00, WinterStrikesBack
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?
Answers: 2
In the laboratory, you are given an unknown solution containing only three ions. You use the followi...
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