2C₂H₂ + 5O₂ → 4CO₂ + 2H₂O 1. How many grams of water are produced from 100 grams of oxygen?
2. How many grams of water are produced from 100 grams of acetylene (C₂H₂)?
3. Given your answers to problems 4 and 5 how many grams of water are produced from 100 g each of oxygen and acetylene (C₂H₂)?

It takes 945.kj/mol to break a nitrogen-nitrogen triple bond. calculate the maximum wavelength of light for which a nitrogen-nitrogen triple bond could be broken by absorbing a single photon.

How air particles exert a pressure on the inside of the balloon

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.