MCQOPTIONS
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| 1. |
2 g of hydrogen combine with 16 g of oxygen to form water and with 6 g of carbon to form methane. In carbon dioxide 12 g of carbon are combined with 32 g of oxygen. These figures illustrate the law of |
| A. | Multiple proportions |
| B. | Constant proportions |
| C. | Reciprocal proportions |
| D. | Conservation of mass |
| Answer» D. Conservation of mass | |