Chemistry, 30.04.2021 22:00 yasameenakbari
Help!!!
Consider the following reaction: 4Al(s) + 3O2(g) → 2Al2O3(s) It takes 4.05 L of pure oxygen gas at STP to react completely with a certain sample of aluminum. What mass of aluminum reacted?
6.50 g
3.21 g
9.23 g
5.22 g
6.02 g
Answers: 2
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Select all that apply. using a value of ksp = 1.8 x 10-2 for the reaction pbcl2 (s) pb+2(aq) + 2cl -(aq). the concentration of the products yield a ksp of 2.1 x 10-2:
Answers: 2
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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
Help!!!
Consider the following reaction: 4Al(s) + 3O2(g) → 2Al2O3(s) It takes 4.05 L of pure oxyge...
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