Water
Water is a compound because it is made from more than one kind of element (oxygen and hydrogen).
Cutting the cardboard would be the first step
Mercury(II) oxide, a red solid, decomposes when heated to produce mercury and oxygen gas. Mercury(II) oxide is a red solid. When it is heated, it decomposes into mercury metal and oxygen gas. A reaction is also considered to be a decomposition reaction even when one or more of the products are still compounds.
Answer:
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Explanation:
Word equation: Iodine + potassium yields potassium iodide
Symbol equation: I₂ + K ⟶ KI
Balanced symbol equation: I₂ + 2K ⟶ 2KI
