Chemistry, 28.11.2019 05:31 cookies1164
Areaction between liquid reactants takes place at - 11.0 degree c in a sealed, evacuated vessel with a measured volume of 45.0 l. measurements show that the reaction produced 35. g of chlorine pentafluoride gas. calculate the pressure of chlorine pentafluoride gas in the reaction vessel after the reaction. you may ignore the volume of the liquid of reactants. be sure your answer has the correct number of significant digits.
Answers: 3
Chemistry, 21.06.2019 20:30
Un cierto gas tiene un volumen de 800ml a 80°c y 600ml a 80°c y 600mmhg de presión. ¿cual será el volumen del gas a condiciones normales? sà el gas es oxÃgeno, ¿cuál será su peso? y ¿cuántas moléculas están presentes en el sistema?
Answers: 2
Chemistry, 22.06.2019 05:00
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 14:00
What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
Answers: 1
Areaction between liquid reactants takes place at - 11.0 degree c in a sealed, evacuated vessel with...
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