The equation for the action of heat on calcium nitrate is: 2Ca(NO_3)_2 to 2CaO + 4NO_2 uarr + O_2 uarr Find out the mass of Ca(NO_3)_2 required to produce 44. 8 L of NO_2 at S.T.P. (Relative molecular mass of Ca(NO_3)_2 = 164 and of CaO = 56)

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?