Answers created by D. Y.

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• How do I solve this problem? "vinegar is a 5% solution by volume of acetic acid. a 100 ml sample contains what volume of concentrated acid and what volume of water? show work."
  
• Question #977a6
  
• Atom of an element has 9 electrons 9 protons and 10 neutrons what is atomic no.?
  
• Question #89e00