El tiempo que transcurre para que los moléculas de reactivos rompan sus enlaces y elaboren nuevos enlaces para dar origen a los productos, se conoce como

The time that elapses for the reactant molecules to break their bonds and make new bonds to give rise to the products is known as

Reaction rates

Explanation:

Reaction rates is time that elapses for the reactant molecules to break their bonds and make new bonds to give rise to the products.

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

i think its 5049.

i hope this !