Why is the proton concentration gradient important in electron transport chain.

What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.