Perform the following reactions and classifying them as physical or chemical changes: a) Iron with copper sulphate solution in water b) Burning of magnesium ribbon in air c) Zinc with dilute sulphuric acid d) Heating of copper sulphate crystals e) Sodium sulphate with barium chloride in the form of their solutions in water.
Answers: 1
Chemistry, 20.06.2019 18:02
What is the partial pressure of ethane, pethane, in the flask?
Answers: 1
Chemistry, 22.06.2019 05:00
Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?
Answers: 3
Chemistry, 22.06.2019 20:00
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
Chemistry, 22.06.2019 21:00
What is the chemical formula for the compound formed between sodium and flour one
Answers: 1
Perform the following reactions and classifying them as physical or chemical changes: a) Iron with c...
Mathematics, 02.07.2021 22:30
Computers and Technology, 02.07.2021 22:30
Mathematics, 02.07.2021 22:30
Chemistry, 02.07.2021 22:30
Mathematics, 02.07.2021 22:30
Mathematics, 02.07.2021 22:30
Mathematics, 02.07.2021 22:30
Mathematics, 02.07.2021 22:30
Mathematics, 02.07.2021 22:30