Question

molecular formula of the compounds of the following elements with hydrogen by referring to the Mendeleev's periodic table.C, S, Br, As, F, O, N, CI

Answer 1

CH4-Methane
H20-water
H2S-Hydrogen Sulphide
HBr-Hydrogen Bromide
HCL-Hydrochloric Acid
AsH3-Arsenic Hydride
HF-Hydrogen Flouride
NH3-Ammonia.