Answers created by B M.

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• Question #b0fca
  
• What is the chemical formula for Y and O?
  
• Question #dbbcb
  
• Question #707a3
  
• What is the name for # Ca(OH)_2#?
  
• Question #8cf92
  
• When atoms gain or lose electrons what do they become?
  
• What atoms have 5 protons?
  
• Why is O2 a molecule?
  
• An #8.8*g# mass of propane is completely combusted. What mass of carbon dioxide will result?
  
• Question #bc428
  
• Oliver has 30 marbles, 12 are red, 10 are green and 8 are black. he asks three of his friends to take out a marble and replace it. what is the probability that his friends each take out a different colored marble?
  
• Question #e8304
  
• How do you determine the pH of a 0.125 M solution of nitric acid?
  
• Question #55042
  
• Question #d02c8
  
• Does nuclear fussion occur naturally?
  
• What type of molecule is shown below?
  
• What does this punctuation mean: :) or ;)?
  
• In which state of matter do molecules have the highest kinetic energy?
  
• In what ways can machines change the way work is done?
  
• What is the voltage required to produce a current of 2.0 A in a wire with a resistance of 16 ohms?
  
• How is a line emission spectrum created?
  
• Why can't ice transfer coldness into another substance?
  
• What is the energy level necessary to enable a reaction to occur called?
  
• How does carbon-14 dating work? How can it tell a basket is 3000 years old, for example?
  
• Why can geometric isomers occur?
  
• What is the past tense of glow? Is it glowed?
  
• A student recorded the following while completing an experiment. Appearance of substance: silvery shiny powder. Effect of magnet: silvery, shiny powder was attracted. Conductivity: conducts electricity. How should this student classify the substance?
  
• How do you name #MgCl_2#?
  
• Question #b99b3
  
• Question #d8726
  
• What holds nonpolar covalent bonds together?
  
• Question #70251
  
• Question #1c929
  
• If the body cells have 12 chromosomes, how many will the sex cells have?
  
• What are some examples of organic chemistry?
  
• What are some examples of cycloalkanes?
  
• What is a pitch (in sound)?
  
• Refractive index = #sin i/sin r# or #sin r/sin i#. what does it tell? and ABOUT WHAT?
  
• According to the quantum mechanical model of the atom what is the maximum number of electrons that can occupy each energy level?
  
• How was the ideal gas equation, #PV = nRT#, derived?
  
• What is an acid and base reaction?
  
• What are 2 inorganic aromatic compounds?
  
• A circuit with a resistance of #8 Omega# has a fuse with a capacity of #3 A#. Can a voltage of #24 V# be applied to the circuit without blowing the fuse?