Asolid has a high to very high melting point, great hardness , and poor electrical conduction, this is .

a. ionic
b. ionic or metallic
c. metallic
d. covalent network
e. ionic or covalent network
how do you remember all of these solids and what they do with regard to boiling point, melting point, conductivity, and bond strength?

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

particle   p is an electron and particle q is a neutron