Question

Which of the following demonstrates a double-replacement reaction?
A. Na3PO4 + MnCl2 Mn3(PO4)2 + NaCl
B. 2AgNO3 + Cu 2Ag + Cu(NO3)2
C. 2Mg + O2 2MgO
D. CaCO3 CaO + CO2

Answer 1

Na3PO4 + MnCl2--> Mn3(PO4)2 + NaCl

2AgNO3 + Cu---> 2Ag + Cu(NO3)2

2Mg + O2 -->2MgO

CaCO3--> CaO + CO2

can you tell what is happening in each reaction?

Answer 2

Thank you!

Answer 3

eh lol idk what i helped u with though :)