Chemistry, 27.07.2019 16:30 kamrulh278
1. how many liters of o2 are needed to react completely with 45.0 l of h2s at stp? 2h2s(g) + 3o2(g) > 2so2(g) + 2h2o(g) 2. describe the shapes and relative energies of the s, p, d, and f atomic orbitals. 3. explain how atoms (ions) are held together in an ionic bond. give the example of an ionic compound. show all work .
Answers: 1
Chemistry, 22.06.2019 05:30, jzjajsbdb8035
Which other elements contain the same number of outer electrons as sodium
Answers: 3
Chemistry, 22.06.2019 10:00, 2019reynolds
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
Chemistry, 22.06.2019 20:00, 20calzoy
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, 23.06.2019 01:00, bsheepicornozj0gc
Reactions in cells take place at about a. 40°c b. 0° c. 100°c d. 60°c
Answers: 1
1. how many liters of o2 are needed to react completely with 45.0 l of h2s at stp? 2h2s(g) + 3o2(g)...
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