Why does a hovercraft move so easily? Check ALL that apply.
it weighs less than other boats
it is floating on air
there is less friction

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

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted

An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8