'Polar covalent molecule' diaporamas de présentation

Biology Keystone Exam Review Packet

Biology Keystone Exam Review Packet. 2013 - 2014. Topic 1: Biochemistry and the Molecule of Life. Questions: 5 -11. Which statement best describes an effect of the low density of frozen water in a lake ? When water freezes, it contracts, decreasing the water level in a lake.

1.28k views • 109 slides

483 views • 48 slides

The Building Blocks of Matter

- Elements and Atoms. The Building Blocks of Matter. Matter may consist of elements, compounds, or mixtures. - Ionic Bonds. Ions and Ionic Bonds.

325 views • 31 slides

Chemistry of Life Part I Common Constituents and Bonds

Chemistry of Life Part I Common Constituents and Bonds. Covalent Bonds. the sharing of a pair of valence electrons by two atoms. Hydrogen atoms (2 H). LE 2-10. e-. e-. Hydrogen molecule (H 2 ). A single covalent bond, or single bond, is the sharing of one pair of valence electrons

352 views • 27 slides

Covalent Compounds

Covalent Compounds. Covalent Bonds, Drawing and Naming Molecules, and Molecular Shapes. Covalent Bonds . Sharing Electrons! Electrons rearranged when an ionic bond forms, electrons transfer from one atom to another to form charged ions. In covalent bonds, neutral atoms SHARE electrons.

275 views • 18 slides

Bellringer

Bellringer. Draw a model for the following elements: A. Sodium B. Chlorine 2. How many valence electrons does sodium have? 3. If sodium lost its valence electrons, what would its charge be? 4. How many valence electrons does chlorine have?

222 views • 13 slides