Cranial nerves 7 intact; symmetry noted when asked to smile and Puff out cheeks, No facial drooping was noted. Temporal artery noted with no weak pulsation, TMJ shows no clicks, intact Maxillary and Frontal Sinus noted, no pain on palpation. Pupils are equal, round, reactive to light. Visual acuity is 20/20 by snellen eye test, Sclera is white and conjunctiva is pink. External structure of the eyes shows no abnormalities, both eyes in equal alignment.
In this mixture, there are no enzymes present and therefore no products are formed. The reaction rate was rated 0, just as we anticipated. 2. The 2nd experiment was a mixture of 2 mL H2O2 and 0.1g Manganese dioxide. We can use the same principal we used for the first experiment, Manganese dioxide is not a protein, not an enzyme, it is a catalyst.
COMPOSITION OF POLLUTION - FREE GROUND LEVEL AIR Nitrogen 78.08% Oxygen 20.95% Carbon Dioxide 0.03% COMPOSITION OF UNIVERSE COMPOSITION OF EARTH Hydrogen 60.40% Iron 35.4% Helium 36.56% Oxygen 27.8% Oxygen 0.96% Magnesium 17.0% Carbon 0.30% Silicon 12.6% ELEMENTS 90 Naturally occurring 19 Synthesized 109 TOTAL ATOM Chapter 3 What is it? Def: The smallest particle still having the characteristics of an element. It is made up of smaller particles: electrons, protons, and neutrons. Simplest atom is H (hydrogen). electron
Observations: Quantitative & Qualitative Data Table Table 1: Solubility Qualitative data: Substances | Time (s) | Soluble or not? (Yes/No) | X | 42 | Yes | Y | 63 | Yes | Z | >180 | No | Table 2: Appearance of the substances while melting Substance X- White rocky powdery dots Qualitative data: Time (s) | Physical appearance of substance X | 10 | White powder dots | 26 | White powder dots | 44 | White powder dots | 55 | White powder dots | 65 | The color of the white powder dots changes to brown powder dots | 82 | Starts to melt a tiny bit | 107 | It stops melting, and there are still white powder left | 125 | Stays as white powder, no melting | 155 | White powder dots, nothing happens | 178 | White powder dots, no melting | 183 | White powder dots, nothing happens | 207 | A few of the tiny white dots starts to melt again | 230 | The white powder stops finally stay still | Table 3: Appearance of the substances while melting Substance Y- White crystal dots Qualitative data: Time (s) | Physical appearance of substance Y | 3 | White crystal dots | 20 | White crystal dots, no change | 40 | White crystal dots, no physical change
WED. POST Thread 1 A. Everyone, your first post should describe the structure of the atom, including it's parts and where they are located. This should include definitions and descriptions of electrons, neutrons, protons, the nucleus, electron energy levels, valence electrons, ionic bonding, and covalent bonding. An Atom is the smallest particle of matter that has independent existence or is in combination with other elements. It is so small that it cannot be viewed under a microscope.
The one peak at 3.482 ppm indicates the –OCH3 group, because the hydrogen atoms (HA) are adjacent to the highly electronegative oxygen atom. The –CH3 hydrogen atoms observe no splitting because they have no neighboring protons (N=0) therefore it is a singlet. The three peaks at around 0.90 ppm represent the –CH3 group on the opposite end of the molecule, because the three hydrogen atoms (HB) are furthest from the electronegative oxygen atoms and because the protons have two neighboring protons (N=2) indicating a triplet. The three peaks at around 2.40 ppm represent the –CH3 group adjacent to the C=O bond, because the hydrogen atoms (HC) have two neighboring protons (N=2) indicating a triplet and it is next to the electronegative double bond. The NMR spectrum does contain impurities including methanol (4.80 ppm), methyl oleate (5.40 ppm), CHCL3 (7.20 ppm), acetone (2.00 ppm), and water (1.60 ppm).
ANSWERS TO ENO":OF-CHAPTER QUESTIONS Multiple Choice and Matching Question answers appear in Appendix F of the text. Short Answer Essay Questions 23. Energy is defined as the capacity to do work, or to put matter into motion. Energy has no mass, takes up no space, and can be measured only by its effects on matter. Potential energy is the energy an object has because of its position in relatibn to other objects.
When you add the blue dye to the HCl, green is formed. The color change means it was a chemical reaction. * Blue dye and NaOCL * As expected, this one did stay blue. There were not any bubbles. Because there was not a color change and bubbles were not formed this was not a chemical change.
A molecule in which the central atom forms three single bonds and has one lone pair is said to have a ________ shape. A) bent B) linear C) planar D) pyramidal E) tetrahedral 8. A bond where the electrons are shared equally is called a(an) ________ bond. A) polar covalent B) coordinate covalent C) nonpolar covalent D) ionic E) none of the above 9. In a precipitation reaction the insoluble product can be identified by the symbol ________.
a. alkali metals b. alkaline earth metals c. halogens d. noble gases e. none of the above 3. What is the collective term for the elements in Groups 1, 2, 13-18? a. actinide series b. lanthanide series c. rare earth elements d. representative elements e. transition elements 4. What is the collective term for the elements in Groups 3-12? a. actinide series b. lanthanide series