1. Law of conservation of mass!

2. In one experiment, he burned phosphorus and sulfur in air to see whether the results further supported his previous conclusion (Law of Conservation of Mass).

3. According to the Law of Conservation of Mass, we have established the mathematical model of heavy metal pollution in Le'an River, and have attempted to find the solution to it.

4. According to the law of conservation of mass, the mathematics model of Modified-Atmosphere Packaging(MAP)is educed.

5. This paper defines what the law of conservation of mass means and its application in Junior chemistry.

6. Third, combination teaching designing about"law of conservation of mass", "the decontamination of water"and"catalyst of hydrogen peroxide decomposition".

7. This is a finely tuned mechanism for responding to the imperatives of the law of conservation of mass.

8. Taking the henhouse as semi-obturation system, dynamic conservation of NH3 in henhouse under ventilation condition was analyzed based on the law of conservation of mass.

9. Chemistry as we know it today, was invented by Antoine Lavoisier with his law of Conservation of mass in 1783.