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? asked in Science & MathematicsChemistry · 1 decade ago

What is a substance or molecule that participates in a chemical reaction?

Please help :) 8 letters, trying to figure out chemistry crossword

3 Answers

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  • Gary B
    Lv 7
    1 decade ago
    Favorite Answer

    catalyst

  • Lois O
    Lv 4
    1 decade ago

    reactant

    Source(s): biochemistry student
  • Anonymous
    1 decade ago

    reactant

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