Iam going to build a boat. my friend says i cannot put a refrigerator and a television in my boat because that would make it too heavy-and the boat might sink. then we would be swimming with the what would you advise me to tell my friend? is she right or wrong? be sure to give me some evidence based on what you learned from the boxes or other places in this activity.

How far is the region from the equator or control climate

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 percentage of hydrogen in nitrogen trihydride