Question 5 The saguaro cactus is found in the desert areas of Arizona and Mexico, while the durian tree is found in the rain forests of Southeast Asia. In which of the following ways are these plants similar?
А They both need water frequently
They both have chloroplasts in their cells.
С They both have large leaves
They both use oxygen for photosynthesis.
2
c
D

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

14,16 18 reacts with group