Science Homework Answers & Questions Page 848

• What minimum mass of water (in g) has to evaporate to absorb 178 kJ of heat?

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• Submit a summary of six of your articles on the discussion board.

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• A block of mass 1.00 \rm kg sits on an inclined plane as shown. (Intro 1 figure) A force of magnitude 70.0 \rm N is pulling the block up the incline...

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• please let me know: 1kpa (Po2) is equivalent to how much micromolar concentration of oxygen???

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• The emperical formula for a compound is CH2O and its molecular mass is 90.0 amu. What is the molecular formula of the compound?

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• ory, what are some of the routines in health care that seem to be inefficient? What examples of participative decision making exist in your workplace?...

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• describe the modern theory of ecolution anddiscuss how it is supported by evidence grom two of the following three areas population genetics

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• Two forces, 378 N at 11 and 306 N at 28 are applied to a car in

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• I have done part of the questions. What is the best answer to part two?

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• How much heat energy, in kJ, is required to convert 60.0g of ice at -18.0 C to water at 25.0 C?

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• How high a tree would a 80.0 kg person have to climb to increase his gravitational potential energy relative to the ground by that amount?

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• the delta E of a system that releases 12.4 J of heat does 4.2 J of work on the surroundings is ______ J.

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• How would one calculate the percentage composition of the elements comprising a molecule from the molecular formula and the periodic table?

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• Research the most toxic, persistent, environmental pollutants such as lead, DDT, dioxins, or others that you might find.

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• Consider the unbalanced reaction Al2O3(s) + CO(g) Al(s) + CO2(g) Species H o f (kj/mol) Al2O3 -1676.0 CO - 110.5 Al 0.0 CO2 -393.5 S 0 (j/mol *K)...

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• Research the effects and symptoms of Ebola, then address the following questions in your initial post: Do you think the restrictive measures imposed

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• The proton motive force generated by respiratory electron transport is responsible for driving the production of ATP via substrate level

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• QUESTION 1 Which of the following statements about heterotrophic pathways (mechanisms) is INCORRECT?

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• How many naturally occuring elements are there? How many naturally occuring elements are there? How many naturally occuring elements are there?

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• Projectile motion is two-dimensional The key to analyzing projectile motion: Treat it as a combination of horizontal motion with constant velocity...

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• U = q U = q V. Sample Problem: In a cathode ray tube (CRT, like in your TV or computer monitor) electrons initially at rest are accelerated through a...

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• Two long, parallel wires, each having a mass per unit length of 40.0 g/m, are supported in a horizontal plane by strings 6.00 cm long.

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• Two blocks are placed in contact on a horizontal frictionless surface. The smaller box has less mass than the larger box.

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• 5. An object that has a weight in air of .675N. Its apparent weight when completely submerged in water is .464N. What is the buoyant force acting on

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• 2 (72 m/s) + (9.8 m/s ) (1.95 m) sin 47 = 7.4828 kg . 036 (part 2 of 2) 10.

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• OPT is Best angle of climb for jet airplanes occurs at _____ .

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• A bullet is fired horizontally with an initial velocity of 900m/s at a target located 150m away from the rifle. How much time is required for the...

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• what's the order of conversions to go from grams to ions?

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• The semi major axis of Pluto's orbit is almost 40 AU. The smallest parallax angle we can measure from orbiting observatories is about 0.001 arc sec.

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• Calculate the quantity, in grams, of formic acid and sodium formate necessary to make 500. mL of a buffer that has a formic acid concentration of...

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• the heat energy required to melt 1.00 g of ice at 0C is 333 J. If one ice cube has a mass of 61.

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• 5. Given the way capillary blood flow is regulated, do you think it is wiser to rest or to exercise following a heavy meal? explain?

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• A block of mass m moving with initial velocity VI moves over a rough surface with coefficient of kinetic friction . How long does it take for the

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• calculate the grams of formic acid and sodium formate necessary to make 500 mL of a biffer that has a formic acid concentration of .75M and a sodium...

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• A sample of ideal gas at room temperature occupies a volume of 23.0l at a pressure of 232torr .

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• You throw a stone vertically upward with an initial speed of 5.8 m/s from a third-story office window. If the window is 12 m above the ground, find...

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• a 15 gram bullet traveling 250 m/s penetrates a 2.1 kilogram block of wood and emerges going 180 m/s.

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• In a particular titration experiment a 25.0 mL sample of an unknown monoprotic acid required 30.0 mL of .200 M NaOH for the end point to be reached.

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• You are standing 2.5 m directly in front of one of the two loudspeakers shown in the figure. They are 3.0 m apart and both are playing a 686 Hz tone...

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• A certain fractional distillation apparatus contains a 24-cm Vigreux column stacked on top of a 30-cm glass tube that is half-filled with 4x4-mm...

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• Describe and explain Acute Renal Failure. Include its pathophysiology, clinical manifestations and treatment.

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• Calculate the amount of heat liberated (in kJ) from 375 g of mercury when it cools from 89.2C to 15.

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• The goal of health research is to identify health problems that should be addressed and testing of new interventions for preventing or treating...

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• It takes 78.2 J of energy to raise the temperature of 45.6 g of lead by 13.3 oC. What is the specific heat capacity of Pb? What is the molar heat

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• Are environmental phenotypical changes passed on to offspring?

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• Gold metal can be reduced from the compound gold sulfide by hydrogen gas. How many grans of Au can be produced from 500.20g of Au2S3 and 5.67g H2?

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• The student decided to do an experiment with his leftover copper(II) sulfate (CuSO4) solution. He divided the solution up into two beakers. He...

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• why do all the planets revolve around the yellow sun?

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• 2ATP 2ADP + 2 Pi 2ADP ATP + AMP The first reaction is ATP hydrolysis followed by a reaction that plays a part in oxidative phosphorylation.

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• Using 4.87g og CoCl2, how would you prepare 100mL of a .0600 M solution of CoCl2?

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