Chem topic 4

• What is the equation for combustion?

  x + o2 = co2 + h2o
• what is the left side of a chemical equation?

  reactants
• what is the right side of a chemical equation?

  products
• what are coeficiants?

  numbers before atoms indicating amounts
• numbers in front of chemicals can change, what cannot?

  subscripts
• (so4)2, how many so4?

  2
• what should you do with an equation that has oxygen?

  save oxygen for last
• what is the unit on the periodic table?

  g/mol
• what is molar mass?

  g/mol
• what is avogadros number/1 mol?

  6.02 x 10^23
• what is the symbol for molarity?

  M
• what is the equation for molarity?

  moles/liters
• what is a solution?

  a homogenous mixture of 2 or more substances
• what is a solute?

  what you put into a solution, usually solid
• what is a solvent?

  substance that dissolves solute, usually liquid
• what is the equation for dilution?

  c1v1 = c2v2
• what is concentration in dilution?

  M