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2 Written questions

2 Multiple choice questions

  1. ACID + BASE -> SALT + WATER
    Eg. HCl(aq) + NaOH -> NaCl(aq) + H20(l)
  2. - proton acceptor/produces OH` (hydroxide) ions
    Eg. NaOH -> Na+ + OH`
    - BITTER and feels slippery
    - conducts electricity
    - turns RED litmus paper BLUE

1 True/False question

  1. Buffers- substances that resist changes in pH
    - optimum blood pH of 7.4 (slightly basic) +/-0.05
    - eg. carbonic - bicarbonate base pair in blood
    -eg. If a person's blood gets acidic (has extra H+ ions), HCO3(bicarbonate) ions react with the surplus H+ ions