Please CAN I PLEASE GET SOME HELP PLEASE PLEASE WILL MARK THE BRAINLIEST How would the graph change if a catalysts were added to the reaction A)part 2 would be lower and parts 1 and 3 would be unchanged B)part 1,2 and 3 would be lower C)parts 1 and 3 would be higher and part 2 would be unchanged D)part 1 would be higher and part 2 would be lower

D or B

Explanation:

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"