Balance the following chemical equations using both the bubble and table methods: Al + O2 -> Al2O3, K2O + H2O -> KOH, Mg + P4 -> Mg3P2, N2 + H2 -> NH3

Here are the balanced chemical equations using both the "Bubble Method" (coefficients in the equation) and the "Table Method" (atom counts).

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1) $\text{Al} + \text{O}_2 \rightarrow \text{Al}_2\text{O}_3$

• Bubble Method:

  $$4\text{Al} + 3\text{O}_2 \rightarrow 2\text{Al}_2\text{O}_3$$

• Table Method:

  Element	Reactants	Products
  Al	4	4
  O	6	6

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2) $\text{K}_2\text{O} + \text{H}_2\text{O} \rightarrow \text{KOH}$

• Bubble Method:

  $$\text{K}_2\text{O} + \text{H}_2\text{O} \rightarrow 2\text{KOH}$$

• Table Method:

  Element	Reactants	Products
  K	2	2
  O	2	2
  H	2	2

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3) $\text{Mg} + \text{P}_4 \rightarrow \text{Mg}_3\text{P}_2$

• Bubble Method:

  $$6\text{Mg} + \text{P}_4 \rightarrow 2\text{Mg}_3\text{P}_2$$

• Table Method:

  Element	Reactants	Products
  Mg	6	6
  P	4	4

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4) $\text{N}_2 + \text{H}_2 \rightarrow \text{NH}_3$

• Bubble Method:

  $$\text{N}_2 + 3\text{H}_2 \rightarrow 2\text{NH}_3$$

• Table Method:

  Element	Reactants	Products
  N	2	2
  H	6	6