Science/Chemistry

• How do you pronounce 'assay'?
  
• Can you find the volume of the krypton when the pressure us increased to 790 kPa? Krypton occupies 15.0 L at a pressure of 210 kPa?
  
• How does the moon taste?
  
• How many elements are in the current periodic table?
  
• Are metals lustrous?
  
• Is clear ocean water a heterogeneous or homogeneous mixture?
  
• (Re: )What mineral accounts for thirty five percent of the earth's composition?
  
• How much energy will be transferred when 35 g of diborane reacts with oxygen according to the following reaction 2B2H6(g) + 6O2(g) -> 2B2O3(s) + 2H2O(g) delta h= -3880 KJ/mol?
  
• 19. What does an -ite or -ate ending in a polyatomic ion mean?
  
• How did Marie Curie's discovery change peoples ideas about the atom?
  
• How can you tell the difference between a magnet and a ferromagnet?
  
• Do metals usually have more than 4 valence electrons?
  
• Is the formation of ammmonia endothermic or exothermic?
  
• Can you identify two differences between carbon-12 and carbon -14?
  
• What element does the chemical symbol Nu stand for?
  
• What is the difference between a chemical change and chemical properties?
  
• What unit of measure would you use for mass?
  
• What are some characteristics of nitrogen?
  
• What is carbon dioxide or CO2?
  
• What is the purpose of NADPH in photosynthesis?
  
• What is an example of a metathesis reaction?
  
• How can you find the amount water pop corn?
  
• What is Iodine used for?
  
• How do you figure out solubility?
  
• How many atoms are present in one stearate anion?
  
• How many protons, neutrons, and electrons are in phosphorous?
  
• How are elements and molecules alike?
  
• What are the three types of passive transport?
  
• What products are always formed in a combustion reaction?
  
• How do u light magnesium ribbon w/o a propane lighter or Bunsen burner?
  
• Can atoms of the same element have a different number of neutrons?
  
• Who invented stick deodorant?
  
• What is the element zinc used for?
  
• Hill reaction?
  
• How are electrons involved in forming chemical bonds?
  
• What is an industrial device which uses water to remove waste gases?
  
• What is the oxidation number of Phosphorous in HPO3?
  
• Describe what happens in the light-dependent reactions?
  
• Are most chemical bonds purley ionic, covalent, both, or neither?
  
• How many atoms in one MOLE(not molecule) of calcium carbonate?
  
• If a truck travels up in a 10 degree incline with a constant speed of 25 m/s, what is the horizontal component?
  
• Does an ion in its parent atom have the same atomic number?
  
• How are oxygen molecules produced in a cell?
  
• What does luciferase mean?
  
• What are the second and third strongest substances known?
  
• Do flammable and enflammable mean the same thing?
  
• How much water is required to dissolve a 50g sample of KNO3 at 70 degrees celsius?
  
• What effect does a catalyst have on a reaction rate in chemistry?
  
• Defenition of unuquadium?
  
• How many milliliters is 14 grams?