Robert Hooke used a microscope to observe tiny spaces in dead cork bark.
What did his observations lead to the discovery of?
A. Bacterial cells
B. Plant cells
C. Cell division
D. Cell organelles

Amixture of gaseous sulfur dioxide and oxygen are added to a reaction vessel and heated to 1000 k where they react to form so3(g). if the vessel contains 0.669 atm so2(g), 0.395 atm o2(g), and 0.0851 atm so3(g) after the system has reached equilibrium, what is the equilibrium constant kp for the reaction: 2 so2(g) o2(g) ⇌ 2 so3(g)

Can someone me with questions 12 and 13 plz.

What is the mass of each element in a 324.8 sample of co2