Question

Tolong di jawab nomor 4 sama nomor 5 ya kak

Answer 1

5. Mr = C2H4O2
C 2 × 12 = 24
H 4 × 1 = 4
O 2 × 16 = 32

24+4+32 = 60

Answer 2

4.
20 x ,909 + 21 x ,002 + 22 x 0,089
18,18 + 0,042 + 1,958 = 20,18 (B)

5
2x12 + 4x1 + 2x16
24+4+32=60 (D)