Answers created by Xik

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• #2NaN_3(s) -> 2Na(s) + 3N_2(g)# Given the equation, how many moles of #N_2# are produced by the decomposition of 1.50 mol of #NaN_3#?
  
• Silver has two naturally occurring isotopes. Ag- 107 with a mass of 106.905 amu and a natural abundance of 51.84 % and Ag-109. How do you use the atomic mass of silver listed in the periodic table to determine the mass of Ag-109?
  
• Question #8c6aa
  
• Question #9e480
  
• How do you do mass to mass stoichiometry problems?
  
• Question #b813b
  
• What do you call an amoeba's "false foot"?
  
• What is the oxidation number of the #"Mo"# in #"MoO"_4^(2-)#?
  
• What is a disproportionation reaction?
  
• How do chloride ions form?
  
• Which protein complex allows hydrogen ions to rush out of the thylakoid, providing energy for molecule formation?
  
• What surrounds the alveoli in the lungs?
  
• How are Van der Waals forces related to boiling point?
  
• Why does #HCl#l have dipole dipole forces of attraction?
  
• How do red blood cells reproduce?
  
• What is the role of viruses in cancer?
  
• Why did Mendeleev have problems arranging the elements #Te# and #I#?
  
• If volume decreases in a gas, what happens to pressure?
  
• How can you find an oxidation number?
  
• What kind of solid often has the highest melting points?
  
• A sample of an unknown substance has mass of 89.5 g. If 345.2 J of heat are required to heat the substance from 285 K to 305 K, what is the specific heat of the substance?
  
• How many single bonds can a carbon atom form?
  
• How will the mass of a rusted iron nail compare with the mass of the same nail before it rusted?
  
• What is a transition metal?
  
• Question #78c76
  
• #1.26*10^27# atoms of xenon equal how many moles?
  
• How do you use the law of conservation of mass to explain why a chemical equation must be balanced?
  
• How does water move during osmosis?
  
• Why won't magnesium bromide react with iodine?
  
• What is the number of sulfur atoms that equal a mass of 32.07 amu?
  
• What happens to particles when a substance gains energy and changes state?
  
• What is the atomic structure of Polyethylene?
  
• What is the chemical formula for fire?
  
• The atomic mass of potassium is 39. If its atomic number is 19, how many neutrons are in each potassium atom?
  
• What is the next atomic orbital in the series 1s, 2s, 2p, 3s, 3p?
  
• What is peptide bond formation?