Which relationship below is an example of a predator-prey relationship? oa. a coyote eats a hen. ob. a rabbit eats grasses. o c. a giraffe eats the leaves from tall trees d. a pet fish eats fish food

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %

What conclusion can you draw from this experiment about the components of the black ink?