Chemistry Homework Help: Answers & Questions Page 78

• At what temperature does water freeze?

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• How does the law of definite proportions apply to compounds?

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• How do I name binary molecular compounds?

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• What are the resonance structures of: anisole and benzaldehyde?

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• How many cubic centimeters would you need to have 1 mole of aluminum?

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• How is air pressure created?

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• What are aromatic amino acids?

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• Will all combinations of metals and non-metals from ionic bond? why?

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• What are some examples of supersaturated solutions?

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• Why is the radius of the lithium atom considerably larger than the hydrogen atom?

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• How can you find the density of Iron without looking up on the internet?

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• Find formula unit mass of NaHCO3?

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• What is a halogen atom?

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• What is the main functional group present in acetone (propanone)?

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• How do you calculate the atomic mass of copper?

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• What is the valence electron configuration for potassium?

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• Why are metalloids sometimes called semimetals?

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• What is the primary difference between a scientific theory and a hypothesis?

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• What is the molar mass of ##Cl##?

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• Why is Boyle's law an inverse relationship?

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• How is a phase diagram for water different?

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• What are the structural isomers of C3H9N?

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• What is the balanced equation for sodium chloride?

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• How do you calculate molar volume of a gas at STP?

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• What is the bond polarity of h2o?

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• What is an example of ionic bonds practice problem?

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• An excited hydrogen atom emits light with a wavelength of 397.2nm to reach the energy level for which n=2. In which principle quantum level did the electron did begin?

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• What is the theoretical yield of sodium chloride for the reaction of 36.0 g Na with 75.2 g Cl2 of the following 2NA+Cl2---> 2NaCl? I keep getting stuck with my conversions. I started with 36.0g NA (1 mol Na/22.99g Na) (1 mol Cl2/2mol Na) =0.782 mol Cl2....

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• What are six physical changes that matter can go through?

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• O-Nitrophenol is steam volatile but p-Nitrophenol is not. Why?

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• What units is atomic mass measured in?

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• How to convert 0.24 kg to Mg in unit conversions?

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• How to claculate value of universal gas constant?

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• How can I illustrate antimarkovnikov's rule by the addition of hydrogen bromide to propene in the presence of benzoyl peroxide?

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• Water is a liquid at room temperature. What is this due to?

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• How do typical dipole-dipole forces differ from hydrogen bonding interactions?

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• How do you carry out Tollens' reagent test?

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• What determines the length of each period in the periodic table?

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• I am doing some practicing so Please check my work please. Acetone (nail polish remover) has a density of 0.7857 g/cm^3. A) What is the mass, in g, of 28.56 mL of acetone? B) What is the volume, in mL, of 6.54g of acetone? Correct it if it's wrong.

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• How many moles of O are in 10.8mol Fe(NO3)3?

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• How did Pauling define electronegativity?

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• What is the oxidation number for Sulfur in the compound Na2SO4?

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• Which is considered a stronger lewis acid, BF3 or BCl3?

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• Do all of the following molecules contain at least one bond angle at 120 degrees: SeS3, SeS2, PCl5, TeCl4, ICI3, and XeCl2?

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• What is the molarity of muriatic acid?

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• How could IR spectroscopy be used to distinguish between benzene and cyclohexene?

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• How would you balance: Na + H2O --> NaOH + H2?

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• What elements make up lipids?

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• What is the charge on a carbonate ion ##(CO_3)####2-##?Compared to the number of protons, how many electrons does the carbonate ion have?

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• For the reaction: 4 NO2 (g) + O2 (g) 2 N2O5 (g) a) What is the rate of formation of N2O5 in terms of the rate of disappearance of O2? b) If the rate of disappearance of O2 = 0.0037 mol L-1s-1 what is the rate of disappearance of NO2?

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