a pyrotechnician mixes 280 G of black powder for a firework find the amount of oxygen carbon dioxide and sulfur dioxide generated when this firework burst if the oxygen oxidizing agent is a powder saltpeter​

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

Which of the following warnings would an agricultural chemist tell a farmer who wants to recycle his or her own ammonia? recycling ammonia is a difficult process that sometimes takes weeks. recycling ammonia requires a degree in biochemistry or a related field. recycling ammonia can be harmful because it is highly flammable and toxic. recycling ammonia costs too much money considering the price of the necessary chemicals.