Chemistry, 08.03.2021 20:20, chaseashley24
PLEASE HELP
A homeowner buys 55.0 kilograms of propane (C3H8). She wants to know the total mass of carbon dioxide that will be produced when all of the propane combusts with oxygen in the air. In order to do the stoichiometry calculation necessary to answer that question, the homeowner will need all of the following information except-
The molar mass of carbon dioxide
The molar mass of propane
The ratio of coefficients of propane and oxygen in the balanced chemical equation
The ratio of the coefficients of propane and carbon dioxide in the balanced chemical equation
Answers: 2
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 20:30, Schoolworkspace453
Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback
Answers: 2
PLEASE HELP
A homeowner buys 55.0 kilograms of propane (C3H8). She wants to know the total mass of...
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