Complex sentence: Silicic acid is a general name for a family of chemical compounds of the element silicon, hydrogen, and oxygen, with the general formula (SiO x (OH) 4-2x) n.
Split into simpler sentences: Silicic acid is a general name for a family of chemical compounds containing the element silicon attached to oxide and hydroxyl groups. This family of compounds have the general formula (SiO x (OH) 4-2x) n.