Plz asap which of the following is a product formed when liclo3 decomposes? o2 li2o cl2o li

O₂

Explanation:

You decompose KClO₃ in the lab to prepare oxygen according to the equation

2KClO₃ ⟶ 2KCl + 3O₂

K and Li are Group 1 metals, so LiClO₃ should have properties like those of KClO₃.

It should decompose to form oxygen.

2LiClO₃ ⟶ 2LiCl + 3O₂

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

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72