Chemistry Homework Help: Answers & Questions Page 47

• What type of crystalline solid is a diamond?

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• Why is Dalton's law of partial pressure necessary?

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• In what way is the functional group of an ester different from that of a carboxylic acid?

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• What is the balanced equation for ammonium carbonate is heated, it decomposes into ammonia gas, carbon dioxide gas, and water vapor?

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• What is the difference between ionic, covalent and metallic bonds?

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• What is the difference between electrons, protons and neutrons?

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• What is the specific heat capacity of air?

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• Why is the number of protons and electrons equal in an atom?

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• How would you balance: FeCl3 + NaOH --> Fe(OH)3 + NaCl?

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• CHCl3 is non polar. Why?

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• What makes an oxygen atom different from a carbon atom? a. a. the number of neutrons b. the number of electrons b. c. the number of valence electrons d. the number of protons?

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• What are some examples of solute?

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• How do you write formula units?

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• Explain in easy words. What does degenerate orbitals mean?

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• What is the difference between molecular mass and formula mass?

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• If enough of a monoprotic acid is dissolved in water to produce a 0.0150 M solution with a pH of 6.05, what is the equilibrium constant tor the acid?

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• Why is nuclear fission considered nonrenewable energy?

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• What is the chemical nomenclature for CH3Cl?

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• The common unit of heat is the Btu, British thermal unit. What units of mass (e.g., grams, ounces, etc.) and temperature (oC, oF) are given for the definition of this heat unit? Mass unit and the temperature unit

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• What is the ionic bond formation of lithium chloride?

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• What is the formula for Magnesium Triiodine? I think it is Mg(I3)2 but wanting to confirm.

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• The molar mass of calcium chloride (CaCl2) represents the mass of one mole of what?

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• Why Calcium is PARAMAGNETIC instead of fully filled orbitals?

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• Why doesn't hydrogen have a neutron?

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• What are London forces and dipole dipole?

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• What is an Isotope?

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• What are metalloids?

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• How does the half life of a nuclide relate to the stability of the nuclide?

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• How do the Ka values for weak and strong acids compare?

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• How did Rutherford's gold foil experiment disprove the plum pudding model?

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• Based on Saytzeff's rule, select the most stable alkene: 1-methylcyclohexene, 3-methylcyclohexene or 4-methylcyclohexene?

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• Why does electronegativity increase as atomic radius decreases?

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• What is the difference between primary, secondary and tertiary alcohols?

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• How many cheese doodles are in .5 moles of cheese doodles?

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• What causes boiling point elevation and freezing point depression in solutions?

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• What is,dark matter made of?

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• Why is the mole an important unit to chemists?

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• What are linkage isomers? Give me an example

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• How do you change 1656 kPa to atm?

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• What is the percent ionization in a 0.15 M solution of HF? (is it possible to calculate percent ionization with only molarity?)

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• Why is PtCl4^2- square planar?

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• How do you convert 8 milliliters to fluid ounces?

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• What is the difference between atomic mass, atomic weight, and mass number?

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• What is the molecular shape of phosphorus trichloride (##PCl_3##)? What are the bond angles in this molecule?

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• How do you convert 190 mm Hg to atmospheres of pressure?

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• Why does NaH2PO4 become acidic in water? I thought this reaction would yield NaOH and HPO4- and NaOH is a strong base! Please explain what happens to the sodium ION. Does it accept a hydroxide?

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• The density of copper is ##8.96 "g/cm"^3"##. The density of zinc is ##7.14 "g/cm"^3"##. A sample of brass has 70% copper and 30% zinc by mass. What would be the density of this brass sample?

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• How would you balance Na2B4O7 + H2SO4 + H2O --> H3BO3 + Na2SO4?

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• How do you calculate percent composition of a mixture?

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• Why is surface tension important to life on earth?

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