How does heat flow in air and ocean currents

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

What is the equilibrium constant of aa+bb=cc+dd

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture