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.
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.
Tympanic sound noted during percussion, Liver and spleen intact, no enlargement noted, no hepatic friction rub or splenic rub heard on auscultation. Renal and iliac artery present with no bruits. Denies pain on palpation, femoral pulse present + 3 and no enlarged inguinal Lymph nodes seen. Lower extremities noted with even hair distribution, skin warm to touch, Popliteal, posterior tibial and dorsalis pedis pulse are present bilaterally. No edema noted, toes are absent of cracks and present of hair, cap refill 3 seconds; presents good vascular circulation.
The string is tied onto a thin metal bar at A and fixed at B. A vibration generator causes the bar to oscillate at a chosen frequency. Explain how a stationary wave is formed. Then describe the key features of the stationary wave shown in Figure 4. * Waves reflect off the clamp and the rod * Waves travelling in opposite directions superpose * Waves have same wavelength and frequency, similar amplitude * Always cancellation at nodes and constructive superposition at antinodes * Energy is not transferred along string * 4 nodes where there is zero amplitude * 3 antinodes where amplitude is maximum * Wavelength 0.80m * End antinodes in phase and middle and ends in antiphase * Between node and antinode, amplitude of oscillation increases On her next jump the gymnast decides to reach a height above position B.
Name: ___________________________________ Date: ______________ Practice Test #3 ____ 1. When a precipitation reaction occurs, the ions that do not form the precipitate A) evaporate B) are cations only C) form a second insoluble compound in the solution D) are left dissolved in the solution E) none of these 2. An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The complete ionic equation contains which of the following species (when balanced in standard form)? A) B) C) D) E) ____ 3.
1. The Structure and properties of Ethene The ethene molecule has a double bond in it, it is an unsaturated molecule. The poly(ethene) molecule has no double bonds, only single. It is a saturated molecule. n [ C2H4 + C2H4 ] ( n [ -CH2-CH2- ] These long chain saturated molecules are very stable and unreactive.
This relationship is specific to the gases that are considered “ideal”. For a gas to be considered “ideal,” it will have no interactions with other molecules and the molecules that make up the gas won’t take up any space. The Ideal Gas Law equation is PV=nRT. “P” stands for pressure, “V” is for volume, “n” gives the number of moles, “R” is the gas constant and “T” is for temperature. The ideal gas constant value is 0.082057 (L x atm)÷(mol x K).
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4. A monophasic action potential is achieved when an only a single electrode is placed at a point along the fibre to record the action potential. Crushing the nerve between the two recording electrodes would result in a value being recorded from only one of the electrodes – the first one- as the action potential would not be able to pass the forceps to be recorded, effectively creating a monophasic potential. Experiment B: Stimulus strength – Response Curve Table of Results Stimulus (V) Amplitude (mV) 1.0 0 1.1 49 1.2 86 1.3 154 1.5 432 1.75 695 2.0 914 3.0 1229 5.0 1350 1350 According to the graph above, the amplitude of the response observed in the nerve, the response is directly proportional to stimulus up until it reaches a strength
With Magnetic force no movement is necessary in contrast to electric force. C. The last part requires you to compare and contrast motors and Generators, C) In a generator the interaction of moving objects creates a magnetic field and that field generates the electric power. An electric motor uses energy created by a magnetic field. FRI. POST Thread