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Type: Multiple-Choice
Category: Reactions
Level: Grade 9
Score: 1
Author: der1228
Last Modified: a month ago

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Grade 9 Reactions

When a piece of magnesium metal is added to dilute hydrochloric acid, fizzing occurs and hydrogen gas is released from the mixture. The fizzing is evidence that a(n)                  has occurred between magnesium and hydrochloric acid.
  1. reactant
  2. product
  3. chemical reaction
  4. odor
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