Question

Hazel

有人會這兩題嗎？
我有點不太熟悉怎麼代數😅

for rent Who - Xov - Amor Y Yo
(2)
Cu+ +
NO3-
+ +
+
NO+
H20
2
28
Na+ +
+/
(3)
1 Eracanos - la noor 2 x 2 will be
+
.
+
K2NaCO(NO2)6+
+\H
H+ + Mn04 –
NO3 + H2O
+
30