Nick hypothesizes that wax has a higher melting point than chocolate how can he test his hypothesis

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Chemistry worksheet - i am not sure what they are asking for exactly?

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!