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Q. N. 12. State Avogadros hypothesis. A certain element X forms two different compounds with chlorine containing 50. 68% and 74. 75 % chlorine respectively. Show how these data illustrate the law of multiple proportions.
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Is it possible to make an aqueous solution with strontium hydroxide, Sr(OH)2 (aq), that gives a pOH of 10.54? If so calculate it. If not, explain why not.
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When 21.44 moles of si react with 17.62 moles of n2 how many moles of si3n4 are formed
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5. The formula below relates the velocity,v, of a moving object (in meters persecond), to the kinetic energy, E, of theobject (in joules), and the object's mass,m (in kilograms).V=2.EmWhat is the velocity, in metersper second, of a bowling ball thathas a mass of 5.5 kilograms and isproducing 2223 joules of kineticenergy?
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19. Evaluate the frequency of the third harmonics of aclosed pipe of length 0. 3m. [speed of sound in air = 340ms-'](a) 1416. 7Hz (b) 850. 0Hz(c) 1511. 1 Hz(d) 283. 3 Hz
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Kevin works 3z hours each day from Monday to Friday. He works (4z-7) on Saturday. Kevin does not work on Sunday. Find the number of hours Kevin works in one week in terms of z
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After an antibiotic is taken, the concentration of the antibiotic in the bloodstream is modeled by the function C(t) = 4te^{-39t}, where t is measured in ug/mg hours and C is measured in Use the closed interval methods to detremine the maximum concentration of the antibiotic between hours 1 and 7. Write a setence stating your result, round answer to two decimal places, and include units.
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Help with math problems
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pls help with this geometry asap
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A man borrows birra 800 for 2 years at a simple interest rate of 20 percent. What's the total amount that nyatta be repaid
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write a summary of the essay sleep aids are yet another examples of problematic OTC's. the inability to sleep or stay awake is a distressing for many People.nevertheless instead of studying their own habits to make efforts to solve the problem naturally
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Typically, individuals reach their peak condition in ______.
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The pattern of a soccer ball contains regular hexagons and regular pentagons. The figure below shows what a section of the pattern would look like on a flat surface. What is the measure of each gap between the hexagons in degrees?
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Can you match terms related to operons to their definitions?.
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Describe the steps that should be taken to restore the land after the overburden has been replaced. Explain why the restoration of the land would likely be more difficult in an arid climate (less than ten inches of precipitation per year). Describe one environmental impact that the sulfur content of the remaining coal and the tailings would have on the reclamation process and suggest a possible remedy. Other than mining and reclamation, describe TWO environmental impacts of using coal for energy. Explain why per capita coal consumption in the United States is likely to increase
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A certain amount of gas is contained in a closedmercury manometer as shown here. Assuming noother parameters change, would h increase,decrease, or remain the same if (a) the amount ofthe gas were increased; (b) the molar mass of thegas were doubled; (c) the temperature of the gaswas increased; (d) the atmospheric pressure inthe room was increased; (e) the mercury in thetube were replaced with a less dense fluid;(f) some gas was added to the vacuum at the top ofthe right-side tube; (g) a hole was drilled in the topof the right-side tube?
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Given ABC, what is the measure of angle B question mark Triangle ABC with measure of angle A equal to 33 degrees and side c measuring 13 and side b measuring 10 7.138 49.734 50.946 97.266
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Which of the below is NOT a law of thermodynamics?Group of answer choicesEnergy must be absorbed.Energy cannot be created or destroyed.Energy spreads out spontaneously.The entropy of any isolated system always increases
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Which ordered pair is a solution to the following system of inequalities?y < x2 + xy > x2 4 (0, 1) (1, 1) (2, 3) (3, 6)
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HELP ME PLEASE!!! *100 points and brainliest for best answer*Fill in the punnet square: T ------------ | Tt |t | Tt tt | ------------In the completed Punnett square, what percentage of the offspring are homozygous recessive?
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A spherical balloon has a 20-in. diameter when it is fully inflated. Half of the air is let out of the balloon. What is the volume of the fully-inflated balloon?
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How did Filipino grammar become more difficult?
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Which of thebfollowing would if it reolaced the word rapid in the sentence above would change the meaning of thesentence?
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during the post-reconstruction era (roughly 1890 to 1908), political leaders adopted the following methods: a) whites-only primaries and b) poll taxes. these methods were most in line with which political culture?
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