N2H4 (1) --> N2 (g) + 2 H2 (g) 2 H2(g) + O2 (g) --> 2 H20 (1)
- If you lost some of your hydrogen gas during your reaction and only produced 7.25 g of H2
(g) how many grams of water will you produce?
1g = 1ml and 1 L = 1000 ml
- How many liters of water will this produce?
- Watney needs 618L of water to survive on Mars until the next mission arrives and can
rescue him. Does 7.25g of H2 produce enough water for him to survive?

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.

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.