B2H6 + 392 -->2 HBO2 + 2 H20
What mass of O2 will be needed to burn 36.1
g of B2H6?

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

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!