Homework Answers Page 10585

• 'Atoms of element X have 6 unpaired electrons. What could be element X?" The answer is chromium

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  Chemistry

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• What is the sin of 30 degrees?

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  Geometry

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• What is descent with modification?

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  Biology

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• How do you calculate the magnitude of displacement?

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  Physics

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• What is the bond polarity of CCL4?

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  Chemistry

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• 4 less than a number ##n## is -15. What is ##n##?

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  Algebra

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• Which nations signed the Rush-Bagot Treaty?

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  History

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• What is the function of DMEM? How does it help scientists culture cells?

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  Biology

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• How human body temperature is maintained at normal value (37 degrees centigrade) when the atmospheric temperature rises as high as 45 degrees centigrade ?

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  Physics

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• The ion HCO3–(aq) can act as an acid or a base in water. (a) Write the reaction for it acting as a base. (b) Write the reaction for it acting as an acid. ?

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  Chemistry

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• How do I convert 3427 into scientific notation?

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  Precalculus

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• How is the line of best fit different from linear interpolation?

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  Algebra

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• What is csc(180 degrees)?

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  Geometry

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• How did Americans affect the end of World War I and its peace settlements?

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  History

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• How does crossing over affect evolution?

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  Biology

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• Why is the index of refraction always greater than or equal to 1?

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  Physics

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• How many acute angles can a scalene triangle have?

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  Geometry

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• What is a subsidy?

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  Economics

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• What do the zeros of a function represent?

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  Precalculus

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• What are compound proper nouns?

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  English

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• In reduction reaction, the reduced atom gains one or more electrons. Why, then, is this reaction called reduction?

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  Chemistry

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• 1.7 g of NaNO3 (Mr = 85) is dissolved in water to prepare 0.20 dm3 of solution. What is the concentration of the resulting solution in mol dm–3?

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  Chemistry

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• Why is ice less dense then liquid water? What is the significance of this property to the survival of living things in cold climates?

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  Biology

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• What are the empirical formulas for tetraphosphorous decaoxide (P4O10) and ethane (C2H6)?

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  Chemistry

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• What is glutathione and its role in a cell?

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  Chemistry

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• A science beaker has a mass of .2400 kg, and a volume of 500 mL. What is the overall density of the science beaker?

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  Chemistry

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• What functional groups are there in aspartame?

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  Chemistry

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• If measurements of a gas are 50L and 300 kilopascals and then the gas is measured a second time and found to be 75L, describe what had to happen to the pressure (if temperature remained constant). Include which law supports this observation?

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  Chemistry

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• How long does it take for light to across the diameter of Earth's orbit around the sun?

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  Science

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• The radius of curvature of a spherical mirror is 30 cm. What is the focal length of the mirror?

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  Physics

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• What do quantitative and qualitative measurements mean in science?

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  Chemistry

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• Witch of the following is not true of exocytosis? A. Results in hormone secretion B. Does not require energy imput C. Allows waste matter to be expelled D. occurs at the plasma membrane

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  Biology

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• What are the s, p, d, f blocks on the periodic table?

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  Chemistry

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• What type of tissue lines the blood vessels?

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  Psychology

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• A dart is thrown horizontally with an initial speed of 10m/s toward point P,the bull's eye on a dart board.It hits at point Q on the rim,vertically below P,0.19s later. What is the distance PQ? How far away from the dart board is the dart released?

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  Physics

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• Why is vinyl chloride is hydrolysed more slowly than ethyl chloride?

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  Chemistry

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• How many years older will you be 1.10 billion seconds be from now?

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  Algebra

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• How many covalent bonds can carbon form with other atoms?

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  Chemistry

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• What does average rate of change mean in calculus?

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  Calculus

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• What is a 8 sided shape called?

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  Geometry

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• How are ionic bonds and van der Waals forces similar and different?

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  Chemistry

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• What is the definition of ageism?

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  Psychology

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• How does the law of conservation of matter and energy relate to the cycles in nature?

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  Physics

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• Write your question here...what is mole in Chemistry?

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  Chemistry

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• Do strong acids completely dissociate in water?

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  Chemistry

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• What is genetic equilibrium?

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  Biology

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• Why are primers required in the DNA replication process?

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  Biology

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• Are all calico cats female?

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  Biology

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• Given ##P(x) = -3x^2 - 4x +5##, what is ##P(-2)##?

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  Algebra

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• How do you find slope of the line perpendicular to the line y=-7?

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  Algebra

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