Chemistry, 05.12.2021 20:30, adamgala3885
Calculate the change in internal energy when 2 moles of CO are converted to 2 moles of CO2 at 1 atm and 25°C. (1 Mark) 2CO(g) + O2(g) → 2CO2(g) ∆= −./
Answers: 1
Chemistry, 22.06.2019 05:00, foreignking02
1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false
Answers: 3
Chemistry, 22.06.2019 06:30, yolo123321
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 08:30, MacenParisi
In the reaction between a crushed antacid tablet and vinegar what gas is emitted
Answers: 2
Calculate the change in internal energy when 2 moles of CO are converted to 2 moles of CO2 at 1 atm...
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