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  1. M

    cheapest yamaha 99 key portable piano?

    i need to find a cheap one... at the same time has good sound and durable... any ideas??? IM SORRY!!! I MEANT 88 KEYS
  2. M

    CHEMISTRY HELP---- IS THE ANSWER KEY WRONG?

    How many mg of BaCl2 are needed to prepare 300mL of a solution containing 1.0 mg of Ba^+2 ions per mL of solution? i found the answer 455 g so 0.455 mg but the answer key says the answer is 455 mg
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