Can someone help me please A 25.00 g sample of an unknown metal is heated to 100.0 degree C . It is then placed in a coffee cup calorimeter filled with water. The water has a mass of 500.0 g and an overall specific heat of 4.184 J/g. C the initial temperature of the water is 10.0 C The system reaches a final thermal equilibrium temperature of 11.0 C when the metal is added

What is the specific heat of metal ?

A. 18.6 J/gC

B. 6.90 cal/gC

C. 1.06 J/gC

D. 0.940 J/gC

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

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.