You allow 4.78g of A and 10g of B to react to form C. Assuming you had a perfect reaction, how many grams of B would be leftover at the end of the reaction? A + 2B -> C

A = 202.0g/mole
B = 85.0 g/mole
C = 105 g/mole

If someone could send me the steps on how to solve this, that would be extremely helpful.

The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?

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.

Apush or pull that moves or changes and object when to objects touch