12 g of commercial zn is made to react with
excess dil H₂So4.
The total volume of H2 gas
literated was found to be 4.2 l at 500 mm
of Hg pressure and
pressure and 279 . Determine percentage
purity of zn

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

the answer is a for sure mark brainliest i had got this right on usatestprep