Publié sur dans “Concevoir”, langue – English. 2 pages.
1. Who discovered the atomic theory?
2. Who discovered the law of conservation of mass?
3. A lead ball has a mass of 49.0 grams and a density of 11.3 g/cm3. What is the volume of the ball?
4. What is the volume in mL of a cube of water with dimensions 11.0 cm × 11.0 cm × 11.0 cm ?
5. When the value 98.54 is rounded to two significant figures, the number should be reported as Plus
