Chemistry, 27.05.2021 18:00 ralphmillerrr
A 17.44 g sample of a hydrate of zinc sulfate is heated in a crucible to drive off all
of the water. After heating, the sample has a mass of 9.79g. What is the empirical
formula for this hydrate?
Answers: 2
Chemistry, 21.06.2019 22:30
1. combine iron and copper (ii) sulfate solution. (hint: iron will form the iron (iii) ion) fe + cuso4 ā 2. combine lead (ii) nitrate and potassium iodide solutions. pb(no3)2+ kl ā 3. combine magnesium metal and hydrochloric acid solution. mg + hcl ā 4. electrolysis (splitting) of water. h2o ā 5. burning magnesium. mg + o2 ā
Answers: 3
Chemistry, 22.06.2019 02:30
When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.
Answers: 3
Chemistry, 23.06.2019 00:30
Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.
Answers: 1
A 17.44 g sample of a hydrate of zinc sulfate is heated in a crucible to drive off all
of the water...
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