Homework Answers Page 10721

• The acidic form of bromothymol blue (pKa = 7.0) is yellow, and its basic form is blue. What colours will this indicator be at pH = 5, 7 and 10 respectively? a)yellow, green and blue b blue, green and yellow c blue, blue and blue d yellow, yellow and blue

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  Chemistry

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• A certain length of wire when vibrated with another sonometer wire produced 2 beats per second for both the lengths ##122 cm## and ##120 cm## of this second sonometer wire and it's tension is same in both the occasions. What is the frequency of first wire?

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  Physics

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• What is an example of an ecological niche?

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  Environmental Science

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• What happens when you mix baking soda and vinegar? Would it be a chemical or physical reaction? A) it flows out of the top, it is physical B) it does not show any difference, physical C) the mixture flows out, chemical D) none of the above Do great!

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  Chemistry

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• How do you write 75% as a fraction?

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  Algebra

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• What is neutralization reaction?

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  Chemistry

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• What is the average human reaction time?

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  Psychology

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• What is an example of a metaphor about homeless people that shows empathy and sympathizes with them?

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  English

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• What does pH measure?

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  Chemistry

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• How do you find the de Broglie wavelength of an electron?

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  Chemistry

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• What is the difference between an equiangular polygon, an equilateral polygon, and a regular polygon? Provide an example of each.

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  Geometry

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• How do you find the multiplier for the rate of exponential decay?

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  Calculus

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• What does the "15w40" stand for?

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  Chemistry

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• A plane flying horizontally at an altitude of 1 mi and speed of 500mi/hr passes directly over a radar station. How do you find the rate at which the distance from the plane to the station is increasing when it is 2 miles away from the station?

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  Calculus

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• What are some organelles plant cells have that animal cells do not?

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  Biology

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• How would you make "fish" plural possessive?

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  English

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• How do you find the average rate of change of a function over an interval?

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  Calculus

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• How did the middle colonies get their name?

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  History

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• A point on the terminal side of an angle theta is given to be (1/4, 1/6). How do you find the exact value of the six trig functions of theta?

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  Geometry

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• What are the oxidation numbers of the elements in the nitrite ion?

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  Chemistry

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• How do you solve ## |x+4|+3=17##?

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  Algebra

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• How would you convert a repeating decimal like 1.27 or 0.6 into a fraction?

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  Algebra

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• Angie and her friends ate ##3/4## of a pizza. Her brother Joe ate ##2/3## of what was left. How much of the original pizza did Joe eat?

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  Algebra

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• Which future president led the Rough Riders during the Spanish-American War?

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  History

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• What does lead(ii) oxide mean?

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  Chemistry

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• What is the color of White blood cells?

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  Biology

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• Why does Mercury have only a thin atmosphere?

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  Science

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• How do you calculate the formal charge of O3?

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  Chemistry

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• What is the square root of 89?

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  Algebra

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• What was the Social Gospel movement?

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  History

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• How do you find the relative extrema for ##f(x) =2x- 3x^(2/3) +2## on the interval [-1,3]?

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  Calculus

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• Are the jugular vein and carotid artery present on both sides of the neck, or is one on the left side and the other on the right?

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  Psychology

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• How is the formation of coal, oil and natural gas similar and different?

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  Environmental Science

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• What is the acronym for the electromagnetic spectrum and how can I remember it?

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  Chemistry

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• How many quarts are in 12 cups?

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  Algebra

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• Your blood has a density of 1.05 g/mL. How many grams of blood would you lose if you donated 1.00 pint?

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  Chemistry

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• How is a prepared slide different from a wet mount on a microscope?

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  Biology

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• What are the monomers for carbohydrates, proteins, lipids, and nucleic acids?

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  Biology

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• What is Proust's law of constant composition?

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  Chemistry

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• What are prime factors of 38?

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  Algebra

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• What is the difference between a condensed structural formula and a structural formula?

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  Chemistry

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• What macromolecules make up the cell membrane?

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  Biology

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• What is the hybridization of the central iodine atom in I3−?

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  Chemistry

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• What is the difference between an internal and an external circuit?

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  Physics

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• What is the purpose of chiasmus?

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  English

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• What metalloids are in the periodic table?

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  Chemistry

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• "Absolute Zero" is what temperature on the Celsius and Fahrenheit scales respectively?

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  Chemistry

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• Do you capitalize the word coming after a semicolon in a sentence?

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  English

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• What is the shape of SF4 (including bond angles)?

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  Chemistry

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• Pepsi puts 355 ml of pop in a can. How many drops is this?

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  Chemistry

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