In the following gaseous phase equilibrium in 5 L flask at constant temperature, number of moles of SO_2 and SO_3 are equal. Calculate number of moles of O_2 at equilibrium. 2SO_2 + O_2 to 2SO_3 , K_c = 5

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?