Copy the following questions into your assessment document. You may copy and paste the table‚ or create a similar table in the document.) After completing the molecular models‚ fill in the table below: (18 points) Molecule What is the central atom of this molecule? Number of lone pairs on the central atom Number of atoms bonded to the central atom Molecular geometry Bond angle (based on VSEPR theory) CCl2F2 C Zero 4 Tetrahedral 109 degrees HCN C Zero 2 Linear 180 degrees
Premium Molecule Atom Molecular geometry
distribution is affected based on the individual’s age‚ sex‚ muscle/adipose tissue ratio‚ state of hydration‚ genetic heritage‚ and health (Doweiko‚ 2009). Once the drug molecules are distributed they reach circulation and can be carried to the site of action. However‚ the drug molecule acts as a foreign substance to the body so the way the molecule transports varies depending on how the body
Premium Chemistry Blood Chemical substance
Anatomy & Physiology Name ________________________________ Organic Molecules Review Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. ____ 1. Ions are a. electrically neutral fragments of a molecule that has been split apart. b. polar molecules c. radioactive isotopes that give off alpha‚ beta‚ or gamma d. charged atoms or molecules that have gained or lost electrons. ____ 2. Sodium has eleven protons. How many electrons
Premium Atom DNA Covalent bond
? Heat of formation of potassium chloride K(s) + ½ Cl2(g) → KCl(s) -437 a) -1537 kJ b) -663 kJ e) -717 kJ c) -157 kJ d) -839 kJ 8. Choose the bond below that is most polar. c) H-F d) H-Cl b) H-Br a) H-I e) C-H 9. Which molecule or compound below contains a polar covalent bond? a) C2H4 d) NCl3 b) ZnS c)
Free Chemical bond Covalent bond Electron
Chapter 2 Extra Credit 1. The diffirence between atoms and molecules is that atoms are the smallest units of matter and can not be divided by chemical means. Molecules are made up of atoms of the same kind that are together in a group. The difference between covalent bonds and ionic bonds are that covalent bonds have 2 atoms sharing the same electron. Ionic bonds occur when an atom takes one electron away from another atom. 2. Adhesion and Cohesion differ because adhesion is when 2 substance
Premium Chemical bond Atom Water
circumstances under which each forms. Ch 3.3 “Ion Formation” “Covalent Bonding” “Polarity in Water Molecules and Hydrogen Bonding” How Atoms Bond; Examples of Hydrogen Bonds http://www.youtube.com/watch?v=QqjcCvzWwww&list=PL3FE5B87E56E7A849&index=3 10 Describe the atomic components and their bonding in water molecules as an example of a compound having polar covalent bonds. Ch 3.3 “Polarity in Water Molecules and Hydrogen Bonding”
Premium Covalent bond Atom Chemical bond
Cohesion is the bond between two of the same substances. A hydrogen bond is a type of cohesion in water in which the hydrogen atoms of one water molecule being attracted to the oxygen atom of another water molecule. In water‚ each molecule in the middle is pulled equally in every direction by neighboring molecules. The cohesion forces between water molecules at the surface of water is surface tension. The cohesion forms a “film like” layer on the surface of water. Some substances may reduce the cohesion
Premium Water Atom Oxygen
which the molecules merge as an outcome of their spontaneous movement or randomized motion of kinetic energy. It is when two chemical species react together at every encounter (combining or merging of the two species for a number of subsequent collisions in solution) and chemical change take place as fast as the reactants can diffuse together (Reichardt‚ 1988). It may occur in solids‚ liquids‚ or gasses. It depends on many factors like temperature‚ molecular weight‚ concentration of molecules in the
Premium Diffusion Salt Molecule
driving force for diffusion is You correctly answered: b. the kinetic energy of the molecules in motion. 2. In diffusion‚ molecules move You correctly answered: a. from high concentration to low concentration. 3. Which of the following dialysis membranes has the largest pore size? You correctly answered: d. 200 MWCO 4. Avogadro’s number is a constant for the number of You correctly answered: b. molecules. 09 Post-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly
Free Molecular diffusion Diffusion Molecule
tube was placed within a 200mL beaker filled with distilled water and paced on a stir plate. A wavelength of 420 nm was chosen while recording the absorbance intensity of glucose‚ while a wavelength of 600 nm was chosen for starch as the respective molecules absorb most efficiently at these wavelengths. C1 is the concentration of glucose or starch in the internal solution and C2 is the concentration of glucose or starch in the external solution. Glucose durat ion of dialy sis (min) *Starch A420 Inter
Premium Glucose Starch Carbohydrate