What limits the growth of phytoplankton? A. the depth of the ocean
B. the amount of nutrients in the water
C. the amount of water that runs off into the ocean
D. the number of fish eating the phytoplankton

How can the periodic table be used to predict the behavior of elements?

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?

El amoniaco y el fluor reaccionan para formar tetrafluoruro de dinitrogeno y fluoruro de hidrogeno. segun la reaccion: nh3 + f2 ⇒ n2f4 + hf si reaccionan 5 gramos de amoniaco y 20 gramos de fuor, ¿cuantos gramos de fluoruro de hidrogeno se producen?