You have two balls in a glass of liquid. Ball A sinks to the bottom. Ball B floats. Which ball is the densest?

A.
B

B.
You can not tell which ball is the densest with this information

C.
A

D.
A and B

What happens to the atomic radius when an elctron is lost

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.

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?