Answers edited by Denise Granger
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How do you simplify -5v -5(-8 -6v)?
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Question #3b334
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What are some examples of enthalpy?
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Why is viscosity classified as a physical property?
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Why do you think it is important that biologists have a good understanding of chemistry?
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I have conducted a calorimetry experiment on the latent fusion heat of ice. Even when the procedure is followed throughly, I keep getting a value that is far off from the actual value. And this continues even after the experiment is repeated, why?
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Calcium hydride reacts with water to form calcium hydroxide and hydrogen gas. The balanced equation to this is CaH_2+2H_2O----Ca(OH)_2+2H_2
How many grams of calcium hydride are needed to form 8.400 g of hydrogen?
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What is the balanced equation for photosynthesis?
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Question #16c23
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What are the points of saturation?
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What is the correct name for N_2O_5?
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What are the main differences in alpha decay and beta decay?
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Question #58a39
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Question #1926f
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How can I balance this chemical equations? Aluminum and hydrochloric acid react to form aluminum chloride and hydrogen gas.
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Are covalent bonds formed between two nonmetals?
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Why is the Hardy-Weinberg equation important?
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Why is the respiration reaction exothermic?
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Question #717bc
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How many divisions are there in meiosis?
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4790 joules of heat are added to 222 grams of water originally at 27.7 C. What is the final temperature of the water?
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What is the formula of titanium(II) oxide?
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Question #67926
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What are the steps of light-dependent reactions of photosynthesis?
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Question #d2fe3
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How does an allele determine a genotype?
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What are examples of alpha decay?
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What are valence electrons?
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How do you write the formula of zinc oxide?
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How do you find an empirical formula from mass percent?
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What does polar mean in chemistry?
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How do you calculate the following to the correct number of significant figures?
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How do valence electrons affect bonding?
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Question #1fa7a
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What is the equation of the line that goes through (5, -6) and is perpendicular to y=9?
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What is the heat released when 25.0 grams of water freezes at 0°C?
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What is a thylakoid?
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Question #a04c1
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The compound adrenaline contains 56.79% carbon, 6.56% hydrogen, 28.3% oxygen, and 8.28% nitrogen by mass, what is its empirical formula?
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The empirical formula for CO_3 was found to have a molar mass of 120 g/mol. What is the molecular formula?
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Question #3c657
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How do you solve 100x^2 = 25?
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Question #f5126
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What are the five characteristics of a base?
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What are the coefficients needed to balance Pb(NO_3)_2 + NaI -> PbI_2 + NaNO_3?
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Question #ad016
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Question #02190
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How can I draw covalent bonds?
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When DNA is replicated, or copied, the ladder splits as the bases separate. New units are added to each half of the DNA molecule. How does this create two identical molecules of DNA?
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Why aren’t glucose and protein normally found in urine?
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How do you solve this system of equations: 7x + y = 11;- 10x - 5y = 20?
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How do you give the six trigonometric function values of 5pi/3?
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What does the R stand for in the ideal gas law (PV=nRT)?
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What do protons determine about an element?
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What is the difference between the independent and dependent variable?
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What process allows you to smell perfume at a distance from the source?
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What VSEPR shape is H_2O?
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Jim's pay is £180 each week. Jim asks his boss for an increase of £20 a week. Jim's boss offers him a 10% increase. Is the offer from Jim's boss more than Jim asked for?
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How do you write/draw a Lewis structure for N?
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Question #087d4
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How is thermochemistry used in my freezer?
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How do you convert 1.75 from radians to degree?
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The sodium-potassium pump is important in what cell function?
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How do you calculate enthalpy change?
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Question #849a9
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What is the oxidation number of hydrogen in H2 ??
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If the pressure is reported as 750*mm*Hg, what is the pressure in atmospheres?