Molecular Shapes; the VSEPR Model (Sections)
In which of these molecules or ions does the presence of nonbonding electron pairs produce an effect on molecular shape? a) SiH4, (b) PF3, (c) HBr, (d) HCN, (e) SO2.
The Components of Matter Key Concepts: 1. Difference between elements, compounds, and mixtures. 2. Law of definite proportions. Elements compound and mixtures Definitions for components of matter. 1) What is the difference Elements: simplest type of substance with unique physical and chemical between elements and molecules properties. Molecules: a structure that consist of two or more atoms (of the same element) Ex: O 2