The equation 2c3h oh + 902 — 6co2 + 8h20 is an example of which type of reaction? single-replacement reaction combustion reaction double-replacement reaction decomposition reaction

Combustion Reaction

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A reaction in which the atom of one element replaces the atoms of a second element in a compound. combustion reaction

https://socratic.org/questions/given-the-reaction-2c3h7oh-9o2-co2-8h2o-how-many-moles-of-oxygen-are-needed-to-r

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g