A cubic sample of a substance has a mass = 8.15 US tons when the length of one side of the cube = 3.66 m. Using dimensional analysis, determine the density of the sample in 9 mL given that 1 US ton = 907.184 kg and 1 L =1 .

PLASE Draw the structure of the product of the followingreaction!! desperately need help

I desperately need help with this last question I have. If somebody could please solve it and show the steps ill be forever grateful and will rate 5 stars.1.)What is the change of energy when an electron of boron travels from the 4th energy level to the 2nd energy level? Please show work.

I desperately need help with this last question I have. Ifsomebody could please solve it and show the steps ill be forevergrateful and will rate 5 stars.

1.)What is the change of energy when an electron of borontravels from the 4th energy level to the 2nd energy level? Pleaseshow work.