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CHEMISTRY, M2 EQ-Bank 2 MC

Which is the correct balanced formula equation for the reaction of potassium with water?

  1. \(\ce{K(s) + H2O(l) -> KOH(aq) + H2(g)}\)
  2. \(\ce{2K(s) + 2H2O(aq) -> 2KOH(aq) + H2(g)}\)
  3. \(\ce{2K(s) + 2H2O(l) -> 2KOH(aq) + H2(g)}\)
  4. \(\ce{K(s) + 2H2O(aq) -> KOH(aq) + 2H2(g)}\)
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\(C\)

Show Worked Solution

→ The correct chemical equation is:

\(\ce{2K(s) + 2H2O(l) -> 2KOH(aq) + H2(g)}\)

→ The state of water is always liquid. An aqueous solution refers to a solution where a substance has been dissolved into water.

\(\Rightarrow C\)