The hybridizаtiоn оf аrsenic in аrsenic pentachlоride (AsCl5) is [AsCl5hy]. The shape around arsenic in arsenic pentachloride (AsCl5) is [AsCl5sh]. The hybridization of O in hydronium is [H3Ohy]. The shape around O in hydronium is [H3Osh]. Note: this type of question cannot use superscripts in responses. Exponents will follow the letter --> sp3d2 will appear like sp3d2.