98 must show your work for brainliest! which has more carbon atoms: a) 48 grams of co₂ b) 12 grams of pure carbon

12g of pure Carbon has 12g of C

CO2 weighs 1C + 2O = 12+2*16 = 44

so 44g of CO2 also has 12g of C

48g of CO2 has more than 12g of C

ans is A.

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 it's c. i'm not sure but i think so.