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what is the ph of the 0.20 M NH3/0.20 M NH4Cl buffer after the addition of 10.0 ml of 0.10M HCl to 65.0 ml of the buffer.
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Halley's comet, which passes around the Sun every 76 years, has an elliptical orbit. When closest to the Sun (perihelion) it is at a distance of 8.
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The synthesis of an amino acid follows this pathway: precursor A intermediate B amino acid C. Each reaction is catalyzed by a different enzyme.
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The three-toed sloth is the slowest moving land mammal. On the ground, the sloth moves at an average speed of 0.037 m/s, considerably slower than the...
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What is the function of the mitochondria?
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Discuss ways in which the body's metabolism adapts to conditions of fasting/starvation. How do these adaptations affect the rate of weight loss when
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ional group difference (where chemistry takes place) between salicylic acid and acetylsalycylic acid? How will Infrared Spectroscopy distinguish this?...
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what is the term used to identify the deposition of an excessive amount of extracellular mastrix
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An equation that represents HNO 3 acting as an Arrhenius acid. ( including the correct charges for ions!
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.....................................................refer to attachment
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the urinary system regulates blood volume and pressure by?
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//www.org/doi/full/10.
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For a damped oscillator with a mass of 170 g, a spring constant 140 N/m and a damping coefficient of 69 g/s, what is the ratio of the amplitude of
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Suppose one gallon of gasoline produces 1.29108 J of energy, and this energy is sufficient to operate a car for 22.0 miles. An aspirin tablet has a...
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Two objects are moving with the same momentum, but one is twice as massive as the other. Which one has the higher kinetic energy and by what factor
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why API E20 test result showing doubtful profile despite high percentage identification? what factors affect API test results?
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When driving during a winter storm (check all that apply):It's okay to just clean snow and ice off your windows B.Pull off the road and turn off your...
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choose a type of data collection method and describe a scenario when it would be useful as well as potential pitfalls of the method
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Is it possible to determine the DNA sequence from the following amino acid sequence?: Leu Pro Arg. Why or Why not?
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What is the half-life of a first-order reaction if it takes 4.8 10 -3 seconds for the concentration to decrease from 1.33 M to 0.51 M?
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-All polymerases have a 3' to 5' exonuclease activity for error correction.
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SHORT ANSWER QUESTIONS 1. temperature and precipitation are the two most important variables controlling the distribution of plants worldwide.
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olution that has a [H3O+] = 1 x 10^-6 M? 27) What is the [H3O+] in a solution with [OH-] = 1x10^-12 M? 26) For Kw, the product of [H3O+] and [OH-] is?...
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Consider the electrochemical cell described below.
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A sample of nitrogen gas is contained in a piston with a freely moving cylinder. At 0 C, the volume of the gas is 361 mL.
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Question 2 : The reaction A (aq) -gt; B (aq) + C (aq) is a first-order reaction. The half-life of A (aq) is 90.3 s at 25.0 oC and its half-life is...
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This exercise gives you an opportunity to review and practice using CORRECT APA for your citation(s) and reference. Be sure to include these, in the...
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Write the structures of the 3 alkenes formed by the dehydration of 3,4-dimethylhexan-3-ol
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Why are mutations not a significant source of variation?
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A student placed 11.
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A block of metal has a volume of 13.4 in.3 and weighs 5.14 lb. What is its density in grams per cubic centimeter?
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How many grams of {\rm{O}}_2 are needed to burn 14.
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A 1000 kg steel beam is supported by the two ropes shown in the figure. Each rope can support a maximum sustained tension of 5600 N. Will the ropes
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Requires two scholarly sources. Imagine that you are a training consultant for a professional soccer player. Discuss the effects of exercise on each...
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A 100 kg ball is initially at 100 m/s. If the ball experiences a constant external force that increases the ball's velocity to 15 m/s, what is the
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1) List the advantages of using C. elegans as a model for olfactory research. 12) Which secondary intracellular messengers are commonly produced when...
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Why would these wavelengths (1300-350micro meter) of light be useful to astronomers?
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University Lake is a reservoir with a surface area of 8 acres and an average depth of 10 feet. The volume of the lakes is 222.2 acre-ft.
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00 kg weight by a thin, light wire that passes over a frictionless pulley.
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[OH]=4.0103M pH = [H3O+]=5.1102M pH = [OH]=7.
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I am trying to find a simple answer to the difference between bit hydraulic power and jet impact force?
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Cu(OH) 2 (s) + heat = CuO(s) + H 2 O(g) Zn + CuCl2 --gt; ZnCl2 + Cu I need the ionic equation and net ionic equation of these two reactions
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Transcribe the following DNA sequence. Hb S: 5' AGT AAC GGC AGA CTT CTC CAC AGG AGT CAG GTG CAC CAT 3' Translate your Hb S transcript. Note: the...
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A 2,800-kg satellite is in a circular orbit around a planet. The satellite travels with a constant speed of 6,270 m/s. The radius of the circular...
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What is the relationship between average atomic mass and isotopic abundance of a given element?
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The speed of light in a material is 0.41 c. What is the critical angle of a light ray at the interface between the material and a vacuum?
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It has been hypothesized that there is a relationship between the increase in the amount of carbon dioxide in the atmosphere since the beginning of
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What does it mean when we say that a lever operates at a mechanical disadvantage, and what benefits does such a lever system provide?
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If Argentinosaurus, a long-necked, gigantic sauropod, had a head height of 19 m and a heart height of 7.
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A system does 100 J of work on its surroundings and gains 50 J of heat in the process. Calculate the change in the internal energy of the system and...
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