Which of the following is not a correct chemical equation for a double replacement reaction?

2 HNO3 + Mg (OH) 2 yields 2 H2O + Mg (NO3) 2

H3PO4 + 3 NaF yields 3 HF + Na3PO4

2 KNO2 + BaSO4 yields K2SO4 + Ba (NO2) 2

Ca + 2H2O yields Ca (OH) 2 + H2

Question

Twig

27 February, 10:26

+3

Answers (1)

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Monica Jacobs · Answer 1

Ca + 2H2O - - > CA (OH) 2+H2

it is not a double displacement reaction.

because only Hydrogen is displaced.

Which of the following is not a correct chemical equation for a double replacement reaction?2 HNO3 + Mg (OH) 2 yields 2 H2O + Mg (NO3) 2H3PO4 + 3 NaF yields 3 HF + Na3PO42 KNO2 + BaSO4 yields K2SO4 + Ba (NO2) 2Ca + 2H2O yields Ca (OH) 2 + H2