Using the periodic table entry of iron below, match the numbers with what they represent. (answers choices ) atomic mass the number 26 number of valence electron the number 56 atomic number the number 4 number of orbits the number 30 number of electrons in n = 3 the number 14 number of neutrons the number 2

1: atomic number is 26

2: number of valence electrons is 2

3: number of orbits is 4

4: atomic mass is 56

5: number of neutrons is 30

6: number of electrons in n=3 is 14

Explanation:

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

lol idk man i guess u gotta ask bill nye the science guy