Chemistry, 04.02.2021 21:00 Serenitybella
With 143.6 grams of acetylene and an excess amount of oxygen gas, what is the percent yeild of carbon dioxide if the actual yield was 452.78 grams? Balanced equation 2C2H2 + 5O2 --> 4CO2 + 2H20
Answers: 2
Chemistry, 22.06.2019 18:30
What volume of a 0.0606 m solution of strontium bromide is needed to obtain 0.340 mol of the compound? question 42 options: a)5.61 l b) 3.4 l c) 600 ml d) 1 l e) 178 ml
Answers: 1
Chemistry, 23.06.2019 02:00
Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium
Answers: 1
Chemistry, 23.06.2019 05:30
Suppose you discovered a new element with 120 protons and 2 electrons in its outer level . i'm what group does this new element belong? what properties would you expect it to have
Answers: 1
Chemistry, 23.06.2019 06:40
15. what volume of cci, (d = 1.6 g/cc) contain6.02 x 1025 cci, molecules (ci = 35.5)(1) 10.5 l(2) 250 ml(3) 9.625 l(4) 1.712 lplz answer with step by step explanation
Answers: 1
With 143.6 grams of acetylene and an excess amount of oxygen gas, what is the percent yeild of carbo...
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