If you burn 53.0g of hydrogen and produce 474g of water, how much oxygen reacted?

The length of a vector arrow represents its magnitude and the point represents its direction true or false apex

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f