Which balanced chemical equation best represents the thermal decomposition of sodium bicarbonate? NaHCO3 (s) → NaOH (s) + CO2 (g) 2NaHCO3 (s) → Na2CO3 (s) + CO2 (g) + H2O (g)
2NaHCO3 (s) → Na2O (s) + 2CO2 (g) + H2O (g) NaHCO3 (s) → NaH (s) + CO (g) + O2 (g)

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н, о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?