Answer:
1.
ELEMENT: H & O
NO. OF ATOMS: 2 (H), 2 (O)
ATOMIC MASS: 1.OO/1.O1 (H), 15.99/16.00
MOLAR MASS: 34.01
2.
ELEMENT: Na, H, C & O
NO. OF ATOMS: 1 (Na), 1 (H), 1 (C), 3 (O)
ATOMIC MASS: 22.98/22.99 (Na), 1.00/1.01 (H), 12.01 (C), 16.99/16.00 (O)
MOLAR MASS: 84.00/84.01