The equations are not balanced. which equation would have the same coefficients in the same order as 2co2 + 3h20 → c2h6o + 3o2?

al + feo → al2o3 + fe
ch4 + o2 →co2 + h2o
pcl5 + h2o → hcl + h3po4
fecl3 + nh4oh → fe(oh)3 + nh4cl

A

Explanation:

The balanced equation of A is

2Al+3FeO -> Al2O3+3Fe

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

d.) circle motion requires a force to give it a centripetal acceleration.