NOT FOR ELECTRONIC STUDENT ACCESS ONLY FOR CLASSROOM USE!! Unit 9: Stoichiometry Practice 1. Differentiate between the significance of the coefficients in a balanced chemical equation and the significance of the subscripts in a chemical formula. · Coefficients show the correct proportions of atoms and molecules in a chemical reaction. They are normal sized numbers placed at the beginning of the chemical formulas in a chemical reaction during the process of balancing. They tell how many of an entire
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Life can be so accelerated in many countries. The competition for the best job‚ the best quality of life or simply “a perfect life” of wealth and material things imposed by society as something to envy‚ can cause an enormous pressure on people of all ages. Sometimes‚ mental and physical wellness can be affected by Stress‚ a continuous feeling of worry cause by difficulties in life that prevent people from relaxing and living in harmony. Students are not the exception: they have to combine different
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Lab 5Cellular Respiration Introduction: Cellular respiration is an ATP-producing catabolic process in which the ultimate electron acceptor is an inorganic molecule‚ such as oxygen. It is the release of energy from organic compounds by metabolic chemical oxidation in the mitochondria within each cell. Carbohydrates‚ proteins‚ and fats can all be metabolized as fuel‚ but cellular respiration is most often described as the oxidation of glucose‚ as follows: C6H12O6 + 6O2 → 6CO2 + 6H2O + 686 kilocalories
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Athletes dealing with pressure: Sidney Crosby Vincent Paul Mr. Greenley PSE 4U May 29th‚ 2013 It was on a Saturday‚ the date was January 1st‚ 2008‚ and millions of hockey fans young and old tuned in front of TV screens and the Ralph Wilson Stadium in Orchard Park‚ New York in preparation for the most exciting hockey game of the century. The locker doors opened‚ and each player one by one followed until there was just me left‚ I took a last look behind me at the empty room and went
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volume of gas was measured (gasometric analysis). The ideal gas law was then used‚ PV = nRT. Since the volume‚ temperature‚ gas constant (R)‚ and pressure are known‚ the amount of moles of hydrogen can be figured and then converted to mass. The water vapor pressure also was subtracted from the measured pressure in the lab to obtain the correct pressure of hydrogen. The values obtained for the three nails using Gasometric analysis were 0.0815‚ 0.0846‚ and 0.1269 grams. After the stopping point of
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Research Question Investigate the effect of temperature on the rate of respiration of various parts of plants (germinating seeds and dormant (non-germinating) seeds)‚ by measuring the oxygen consumption and change in gas volume of respirometers containing either germinating or non-germinating seeds at different temperatures to measure the rate of respiration of these beans at different temperatures. Hypothesis 1.Germinating seeds have a higher rate of respiration as compared to non-germinating
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of the collision domain. The size of the collision domain can be reduced by adding hubs to a network. The more interfaces a router has the larger the resulting broadcast domain. Adding a switch to a network will increase the size of the broadcast domain. 2. Which switching method describes a switch that transfers a frame as soon as the destination MAC address is read? fragment-free cut-through store-and-forward latency forwarding 3. Which cost-effective physical network topology design
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cross point switch which will just forward the data packets to their final destination. Bridges and switches are alike in that they can connect a network or networks together. They both are like traffic cops that can help send the data packets to the final destination. The main difference is the number of networks that they can connect. A bridge and connect 2 networks and a switch can connect multiple networks. $69.99 The Hewlett Packard switch is a midsize
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main purpose of the Core Layer: The high speed backbone of the internetwork. Aggregates the traffic from all distribution layer devices and also connect to Internet resources. 5. What is a Virtual LAN (VLAN)? Allow you to segment the traffic on a switch into separate sub networks. 6. List and briefly describe the Benefits of a Hierarchical Network: Scalability – allows you to replicate design elements as the network grows. Redundancy – increase availability Performance – communication is enhanced
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Salvation Rhetorical Analysis Langston Hughes‚ in his personal narrative “Salvation‚” tells of his experience with being pressured by the adult figures in his life to be “saved from sin” and to “come to Jesus” even though he did not feel saved at all. In his piece written in 1925‚ Hughes’s purpose is to show his confusion and loss of faith through the need to please his elders and conform to their beliefs. Throughout the excerpt‚ Hughes conveys a childlike tone in order to highlight his uncertainty
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