H2(+1)Cr2(+6)O7(-2)
H2(+1)Cr(+6)O4(-2)
H(+1)Mg(+7)O4(-2)
H3(+1)P(+5)O4(-2)
H(+1)As(+5)O3(-2)
H3(+1)As(+5)O4(-2)
H(+1)Cl(+7)O4(-2)
H3PO4=3H+ PO4;
H2(+1)Cr2(+6)O7(-2)
H2(+1)Cr(+6)O4(-2)
H(+1)Mg(+7)O4(-2)
H3(+1)P(+5)O4(-2)
H(+1)As(+5)O3(-2)
H3(+1)As(+5)O4(-2)
H(+1)Cl(+7)O4(-2)
H3PO4=3H+ PO4;