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Homework Statement
Write a balanced equation and indicate the reaction type (single/double replacement, decomposition, or synthesis) for each of the following:
a) Sulfuric acid (aq) + potassium hydroxide (aq) -->
b) Zinc (s) + sulfuric acid (aq) -->
Homework Equations
The Attempt at a Solution
a) H2SO4 (aq) + KOH (aq) --> K2S (aq) + H2O (L) (double replacement) -- can't seem to balance it though...
b) 4Zn (s) + H2SO4 (aq) --> 4ZnO (s) + H2S (aq) (single replacement)
-- I don't know how to determine whether the products will be s, aq, or L; can someone please explain how to determine that?