Give the empirical formula of a compound that contains 11.6g iron and 5.01 g of oxygen

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!

Write the overall equation for the reaction occurring in lithium battery?

How many moles does 80.0 h2o respresent