(a) Incorrect, the correct symbol of cobalt is Co.
(b) Incorrect, the correct symbol of carbon is C.
(c) Incorrect, the correct symbol of aluminium is Al.
(d) Correct (He).
(e) Incorrect, the correct symbol of sodium is Na.
(a) Incorrect, the correct symbol of cobalt is Co.
(b) Incorrect, the correct symbol of carbon is C.
(c) Incorrect, the correct symbol of aluminium is Al.
(d) Correct (He).
(e) Incorrect, the correct symbol of sodium is Na.
Mass of Sample | Mass of carbon | Mass of Hydrogen | |
Sample 1 | 1.0 g | 0.862 g | 0.138 g |
Sample 2 | 1.549 g | 1.335 g | 0.214 g |
Sample 3 | 0.988 g | 0.852 g | 0.136 g |