5 points When you touch a hot pan, the_a travels through the_b__and
goes to the _. A message is then sent back through the motor
neurons to pull your hand away. Touching the hot pan is the _, while
pulling your hand away is the __e_
b
c
d
sense neurons
nerve impulse
response or
action
central
nervous
system
stimulus
_

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

gas

explanation:

smoke is the matter of a gas