The diagrams below shows the structure of sodium chloride (NaCl), which is considered an extended structure. What statement best describes the structure of sodium chloride? Group of answer choices It is a simple molecule composed of one element. It is a crystal lattice composed of one element. It is a simple molecule without a repeating pattern. It is a crystal lattice that has a repeating pattern. I NEED THE ASNWER ASAP I'M IN A RUSH THX :D

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

the ratio of the conjugate base to the acid required to attain the desired ph.