Illustrate and label 9 grains separated by grain boundaries. In your drawing, which structures are crystals? What is polycrystalline? What are grain boundaries? How are the atoms arranged inside a grain?
Illustrate and label 9 grains separated by grain boundaries. In your drawing, which structures are crystals?...
1. How do crystals and amorphous solids differ? a. Crystals have particles that are separated by b. Crystals have broad melting point ranges and shattered and amorphous solids do not. 6. Which of the following statements is true? a. Metallic solids have a dull appearance. c. Covalent solids have low melting points. amorphous solids do not. b. Molecular solids have a low density d. Ionic solids are soft. amorphous solids do not c. Crystals produce regular shaped fragments when 7....
When drawing substituted cyclohexanes, they can be drawn in either a chair form (with axial and equatorial substituents) or in a line form (using wedges and dashes to indicate the relative positions and locations of substituents). These same types of drawings can be used to illustrate what happens after a chair flip (aka ring flip). Given the structures drawn in each part below, draw the corresponding chair conformation that would result from a chair flip.When drawing your chair structures change...
6. Draw the Neuromuscular junction and label the Following structures. Include the three substances that interfere with normal muscle contraction (both toxic and therapeutic). ID synapse, neurotransmitter synaptic cleft, axon terminal, synaptic bulb, synaptic vesicles, motor end plate, acetylcholine receptors, Junctional folds, acetylcholinesterase. 7. Describe or draw each of the contractile proteins (actin/myosin) and regulator proteins (troponin & tropomyosin). Explain the set up and how each participate in muscle contraction. Name the protein that attaches the sarcomere to the sarcolemma...
All questions go with Model 4 , please label thank you in the Ltwis suettre for PCls and XeFe Model 4: Which Lewis Structure is Better? The two structures below could represent the thiocyanate polyatomic ion. However only one does. Formal charges can be used to distinguish which has a lower energy and is therefore a better description of the lowest energy state of this ion. How is formal charge determined? 9. 10. How is formal charge used to identify...
2. Exercise 17-2 Using the microscope identify and label the cardiac muscle structures from figure 17.12 (Page 462). Make a drawing or take a picture of your observations. 3. What is the name of the blood vessels that provides blood supply to the heart? From which artery does the blood vessels that provide blood to the heart come from? 4. During fetal life what structure allows blood flow from the right atrium to the left atrium? 5. What are the...
Analyze each pair of compounds structures represent. Your cho cach pair of compounds below. Identify which class of isomers each pair of s represent. Your choices are: (i) constitutional, (ii) conformational, (iii) omers, (iv) diastereomer or (v) identical (non-isomers). Only one label for each pair should be used. For each case show work (drawings, (R)/(S), rotation of bonds, chair- "ps, etc) which led you to each answer for the pairs below. Any differences of answers between you and your peers...
9. (12 pts) Label the scutes on the following pics of Clemmys guttata and indicate which figure shows the carapace and which shows the plastron. 132 9. (12 pts) Label the scutes on the following pics of Clemmys guttata and indicate which figure shows the carapace and which shows the plastron. 10. (8 pts) The Tamaulipan deathstalker nake is deadly. Unfortunately, it looks almost exactly like a harmless species from Nuevo Leon and their ranges overlap. The only difference is...
3. Griffiths draws a donut on page 448 (Fig 11.4). What is this drawing trying to demonstrate?! He doesn't label the figure, so take your own shot: how would you briefly and clearly explain to a reader what is being shown here? 471 11.1 Dipole Radiation FIGURE 11.4 mutually perpendicular, and transverse; the ratio of their amplitudes is Eo/ Bo c. All of which is precisely what we expect for electromagnetic waves in free space. (These are actually spherical waves,...
1.) (9 points) Give structures for the following compounds: a) meta-phenylphenol b) 6-benzyl-3-heptanol e) ortho-sec-butyltoluene 2.) (9 points) Name the following compounds: 3.) (8 points) Label the following molecules as aromatic, anti-aromatic, or non-aromatic. For the ones th aren't aromatic, explain why they are either non-aromatic or anti-aromatic. 0.8 4.) (11 points) For the following electrophilic aromatic substitution reaction: Вт, FeBr; a) Which product is the major one? b) Draw a complete mechanism for the formation of the major product...
1. Label the microphylls and strobili in the Figure 1 below. Figure 1. Lycopodium sp. Examine the prepared slide of a mature Lycopodium strobilus. (See text Figure 17-16, pages 406 and 407.) Note that Lycopodium, like most species in the Lycopodiaceae, is homosperous and only produces one type of spore 2. Label the spores in Figure 2 below. Figure 2. Lycopodium strobilus 1.s. 3. Given that Lycopodium is homosporaus, would you expect its gametophytes to be unisexual or bisexual? Explain...