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Write out the balanced equation for the reaction that occurs when Ca(OH)2 and H3PO4 react together. You do not need to make your subscripts smaller; just write them out at regular numbers. For example: Ca(OH)2.

Respuesta :

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3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O

        Left side                         Rigth side

Ca   3                                   3
O     3*2+2*4=14                  2*4 + 6 =  14
H     3*2 + 2*3 = 12              6*2=12
P     2                                   2                           

Explanation:

A balanced equation is the one which has equal number of both reactants and products.

The reaction between Ca(OH)2 and H3PO4 is as follows.

        Ca(OH)2 + H3PO4 [tex]\rightarrow[/tex] Ca3(PO4)2 + H2O

Number of reactant atoms are as follows.

  • Ca = 1
  • O = 6
  • H = 5
  • P = 1

Number of product atoms are as follows.

  • Ca = 3
  • O = 9
  • H = 2
  • P = 2

To balance the equation, multiply Ca(OH)2 by 3 and H3PO4 by 2 on the reactant side. Also, multiply H2O by 6 on the product side.

Therefore, the balanced chemical equation will be as follows.

      3Ca(OH)2 + 2H3PO4 [tex]\rightarrow[/tex] Ca3(PO4)2 + 6H2O

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