Using improved chemistry equipment in the late 1700s, chemists observed that mass is neither created nor destroyed in a chemical reaction. this scientific law is called the law of

Describe the interaction that occurs between two objects with the same electrical charge.

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.