Ground Water can become polluted from when fossils and things make their way to the bottom of the ground and polluted the ground water
The molecular geometry is trigonal planar. I would choose E
False because when a substance changes from one state of matter to another it is a physical change no matter how many states of matter it skips
Closed system. If the system is not closed, matter or energy can escape from the system. an example of this is if you react magnesium and hydrochloric acid in a open system. The H₂ gas is going to escape making it look like some of the mass disappeared . in that same reaction some in an open system will also loose heat to the surrounding which will make it look like less heat was produced.
Answer:A and B
Explanation: orientation and energy is all that matters
