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  1. O

    chemistry plzzzzz!!!!!!!!!!!!!?

    which has a larger second ionization energy, lithium or beryllium?? why?? plz explain thanks for ur help :)
  2. O

    chemistry help please!!!!?

    1) Aqueous solutions of sodium sulfide and copper(II) chloride are mixed together. Which statement is correct? a– Both NaCl and CuS will precipitate from solution. b– No precipitate will form. c– Only CuS will precipitate from solution. d– Only NaCl will precipitate from solution. 2) An...
  3. O

    4 chemistry questions....help plz?

    1) Which of the following solutions contains the greatest total ion concentration? a– One mole of potassium chloride dissolved in 1.0 L of solution b– One mole of iron(II) nitrate dissolved in 1.0 L of solution c– One mole of potassium hydroxide dissolved in 1.0 L of solution d– One mole of...
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