Pls will give brainlest! will give and you in btw i just want a simple answer pls question 4 unsaved which statement about magnetic poles is accurate? question 4 options: same magnetic poles attract, while different magnetic poles repel. same magnetic poles attract, while different magnetic poles attract opposite magnetic poles repel, while like magnetic poles attract. opposite magnetic poles attract, while like magnetic poles repel.

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