Answers edited by Alfredo T.

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• What kind of complexes does #"Mo"^(+3)# typically form?
  
• How can I calculate the percent composition of magnesium oxide?
  
• Question #14bf7
  
• Why is enthalpy a state function?
  
• Question #15440
  
• How can a chemical formula be experimentally determined?
  
• Question #85d36
  
• What term can be used to label the chemical change sodium cation undergoes after dissolving in water?
  
• Question #5be33
  
• Question #9c6b9
  
• Question #fabcb
  
• Question #e2b05
  
• Question #1f4c4
  
• Why are covalent bonds insoluble in water?
  
• Question #67212
  
• How does intensity affect the photoelectric effect?
  
• What is bond angle of SiO2?
  
• Question #67212
  
• How can I calculate the molar volume of Hydrogen gas?
  
• Question #f5110
  
• How do endothermic reactions absorb heat?
  
• Is covalent bond formation endothermic?
  
• Question #25b19
  
• How can I balance neutralization reactions?
  
• How are hydrogen bonds related to cohesion?
  
• What is the relationship between Boyle's law and the kinetic theory?
  
• Question #0c82b
  
• What mass of #KC_2H_3O_2# is produced when 10.0 L #CO_2# is produced from potassium carbonate and excess acetic acid?
  
• How can a synthesis reaction be recognized?
  
• What is the name of #R- CH_2 - NH_2#? Also, is it a primary or a secondary amine?
  
• Can you put a higher reaction coefficient when balancing equations?
  
• Question #14fe2
  
• When the pressure on a gas increases, will the volume increase or decrease?
  
• 10.00mg of a substance yields 11.53mg H2O and 28.16mg CO2. What is the empirical formula of menthol? This is so confusing, help would be much appreciated!?
  
• Question #646eb
  
• Is osmolality preferred over osmolarity?
  
• What is an example of an Avogadro's law practice problem?
  
• Question #da032
  
• Why can only two electrons occupy each orbital?
  
• Question #f3b97
  
• How can I understand Hess's law step by step?
  
• How does polarity affect bond angles?
  
• For the reaction represented by the equation #Cl_2 + 2KBr -> 2KCl + Br_2#, how many grams of potassium chloride can be produced from 300. g each of chlorine and potassium bromide?
  
• What factors describe why ionic compounds are supposedly soluble in any polar solvent?
  
• How does a gas expand according to the kinetic molecular theory?
  
• Question #7ec46
  
• Question #708e2
  
• Why are chemical reactions reversible?
  
• What molar quantity is present in a #0.5*mL# of #5.0*mol*L^-1# acetic acid?
  
• Why do endothermic reactions happen?
  
• Question #e9418
  
• Question #52fdb
  
• If a gas effuses #1.89# times as fast as #"COCl"_2(g)#, what is its molar mass?
  
• How come an atom cannot have a permanent dipole moment?
  
• Question #1cf45
  
• How does osmolarity affect cells?
  
• Question #5ab95
  
• Question #fef12
  
• Does a double replacement reaction involve an exchange of bonds between compounds?
  
• Question #3d17d
  
• Question #962e0
  
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