BCR 3.1

BCR 3.1
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  • Hello this is BCR 3.1 
  • HULLO
  • WHERE ARE REACTANTS AND PRODUCTS?
  • The subatomic that is affected during a chemical reaction is the valance electron
  • WHAT PARTICLE IS AFFECTED?
  • Evidence to show a chemical reaction occurred:  Temp. change, color change, emission of gas, odor, change in PH, dissolving reactants, forming precipitants and fire 
  • WHAT SHOWS THAT A REACTION HAS OCCURRED?
  • Reactant 
  • Zn + 2HCl → ZnCl2 + H2
  •     Reactants would be on the left side of the equation and products would be on the right side of the equation
  • Product  
  • The law of conservation of mass states that  that matter can never be created nor destroyed
  • WHAT IS LAW OF CONSERVATION OF MASS?
  • This equation O2  +  H2  = H2O is not balanced This is the balanced equation ___1__ O2  + __2___  H2     =   ___2__ H2O
  • WHAT IS A EXAMPLE OF AN BALANCED EQUATION?
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