Answers edited by Media Owl

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• Question #50ca2
  
• Question #8e654
  
• Question #2bedc
  
• When #2# moles of water are produced, the following reaction has an enthalpy change of reaction equal to #-"184 kJ"#. How much water is produced when this reaction gives off #"1950 kJ"# of heat?
  
• How can I calculate molality of pure water?
  
• Question #7b124
  
• How do I use zero factor property in reverse?
  
• What is the valence electron configuration for phosphorus?
  
• Question #1ffa9
  
• Question #85d50
  
• Question #7321f
  
• Question #40e74
  
• How many p-orbitals are occupied in a N atom?
  
• What are isotopes?
  
• Question #efd75
  
• Question #fee41
  
• How does pH affect the Nernst equation?
  
• How does molality affect the boiling point?
  
• How does a limiting reagent affect how much product is formed?
  
• What is the balanced chemical equation for: Liquid methanol (CH3OH) combusted in oxygen gas to yield carbon dioxide gas and liquid water?
  
• How is hydrogen bonding among water molecules related to the structure of the water molecule?
  
• Question #b131e
  
• How does inertia affect the motion of a puck?
  
• Question #dc361
  
• How can rate of reaction be affected?
  
• How does electronegativity affect ionic bonding?
  
• What is the graph of #r=a cos 4theta#?
  
• What are the reactants of a neutralization reaction?
  
• If the radius of a sphere is increasing at a rate of 4 cm per second, how fast is the volume increasing when the diameter is 80 cm?
  
• How many valence electrons does sodium have?
  
• What are some examples of valence electrons?
  
• Question #37be3
  
• Question #afc26
  
• How do you find the period and graph the function #y=4tanx#?
  
• How can I write the formula for sodium sulfide?
  
• Do magnesium, aluminium and zinc react with water?
  
• What is the limit as x approaches infinity of #(1+a/x)^(bx)#?
  
• Question #b985b
  
• How do you balance this redox reaction using the oxidation number method? Fe2+(aq) + MnO4–(aq) --> Fe3+(aq) + Mn2+(aq)
  
• What are germ cell mutations?
  
• Is covalent bond formation endothermic?
  
• How can gas pressure be changed?
  
• If metal X is lower then metal Y in the activity series, then what would happen?
  
• Question #97f87
  
• How do endothermic reactions absorb heat?
  
• How do electron configurations correspond to the periodic table?
  
• How many p-orbitals are occupied in a K atom?
  
• What factors describe why ionic compounds are supposedly soluble in any polar solvent?
  
• If the velocity of an object doubles, does its momentum double?
  
• How does solubility affect boiling point?
  
• How are metals similar to metalloids?
  
• What is the ideal gas constant for butane?
  
• Why is diffraction grating more accurate than double slits to measure the wavelength of light?
  
• What SI units are used to measure density?
  
• What is mass number equal to?
  
• How does the law of constant proportions apply to carbon dioxide?
  
• What is the smallest of the three numbers if the sum of three consecutive numbers is 72?
  
• What is it called when sodium and chloride ions separate when dissolved in water?
  
• How does dilution affect molarity?
  
• How can I write nuclear equations for alpha decay?
  
• Do ethers and esters form hydrogen bonds with water and with themselves?
  
• Do strong acids completely dissociate in water?
  
• Why are atomic masses of most of the elements fractional?
  
• How is gibbs free energy related to enthalpy and entropy?
  
• I did a Magnesium Oxide Lab.Magnesium often reacts with nitrogen in the air. If some of the magnesium had reacted with the nitrogen, would it make the % composition of ur sample higher or lower than it should be? Explain (Hint-Try a sample calculation).
  
• How can I convert percent concentration to molarity?
  
• How do I use the binomial theorem to find the constant term?
  
• Question #d6499
  
• Why is hydrogen included in the metal activity series?
  
• How do oxidation numbers relate to valence electrons?
  
• Question #23ae1
  
• How do ionic and molecular compounds compare in terms of boiling points?
  
• How do I calculate the mass of zinc and iodine that are consumed to produce zinc iodide?
  
• How do valence electrons affect chemical bonding?
  
• How does resonance affect the sound quality of a musical instrument?
  
• What are the major and minor resonance contributor(s) for the formate anion, #HCO_2^–#?
  
• What is the noble gas notation for the electron Br?
  
• How does molality affect the freezing point?
  
• How do you work out the percentage of each element in sodium hydrogen sulfate ?
  
• What is the empirical formula for valproic acid?
  
• What is an example of an Avogadro's law practice problem?
  
• What is the inflection point of #y=xe^x#?
  
• How do viruses violate the cell theory?
  
• Is the following acid-base reaction Arrhenius, Bronsted-Lowry, or Lewis: AlCl3 + Cl --> AlCl4-
  
• What concentration measure changes with temperature?
  
• What is the chemical equation for diphosphorus trioxide + water ---> phosphorous acid?
  
• Question #08502
  
• What is the first step of cellular respiration?
  
• Determine which of the following must change when pitch gets higher: amplitude or frequency or wavelength or intensity or speed of the sound waves?
  
• Why is enthalpy an extensive property?
  
• Question #fee32
  
• How do I find the trigonometric form of the complex number #sqrt3 -i#?
  
• Question #9f50d
  
• What are coincident lines?
  
• Question #398ea
  
• Question #fa0cb
  
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