C. Aluminium oxide
Answers: 1
Chemistry, 22.06.2019 07:30
11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg
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 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.
Answers: 1
Chemistry, 22.06.2019 23:30
The density of benzene at 15 °c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams
Answers: 2
Which one of the following oxides is soluble in water?
A Lithium oxide
C. Aluminium oxide
C. Aluminium oxide
Mathematics, 25.02.2021 04:30
Health, 25.02.2021 04:30
Mathematics, 25.02.2021 04:30
Biology, 25.02.2021 04:30
Mathematics, 25.02.2021 04:30
Mathematics, 25.02.2021 04:30
Mathematics, 25.02.2021 04:30
Biology, 25.02.2021 04:30
Biology, 25.02.2021 04:30
Mathematics, 25.02.2021 04:30
Mathematics, 25.02.2021 04:30
Chemistry, 25.02.2021 04:30
Mathematics, 25.02.2021 04:30
Social Studies, 25.02.2021 04:30