27 Points Please Help ASAP Will Mark Brainliest If All Are Answered!!

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Light waves travel than sound waves.

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.