Ca(OH)2(aq)
+ H3PO4(aq)
→
Ca3(PO4)2(s)
+
H2O(l)
Cu +
HNO3 →
Cu(NO3)2
+ NO (base)
Cl2 →
ClO3- +
Cl- ( base)
1. Write the complete balanced chemical equation for the decomposition of solid sodium bicarbonate when heated. 2. Balance and translate the given chemical equation to a word equation. Ca(OH)2(aq) + H3PO4(aq) + Ca3(PO4)2(5) + H2O 3. Write the balanced chemical equation corresponding to the following chemical reaction: Three moles of sodium bicarbonatereact with one mole of hydrogen phosphate to give one mole of sodium phosphate, three moles carbon dioxide and three moles water. 4. Balance the given equation using the valence change method. Identify the reducing agent and the oxidizing agent. Cu + HNO3 + Cu(NO3)2 + NO (base) 5. Balance the given equation using the half-reaction method. Identify the ion or element that gained electron and indicate the number of electrons gained. Identify the ion or element that lost electron and indicate the number of electrons lost. Cl2 → CIO3 Cl* (base)
Ca(OH)2(aq) + H3PO4(aq) → Ca3(PO4)2(s) + H2O(l) Cu + HNO3 → Cu(NO3)2 +
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