Which of the complexes or complex ions has geometric (cis or trans) isomers?a. [Pt(NH3)2Cl2] (square planar)b. [Cr(NH3)4Cl2]+ c. [Cr(NH3)5Cl]2+ d. [Co(NH3)2Cl2]2− (tetrahedral)

Explanation:

Out of four given compounds , two will show cis-trans isomerism .

They are as follows ,

[Pt(NH₃)₂Cl₂]

and

[Cr(NH₃)₄Cl₂]+

see the attached file.

r just means there's a number of carbon in teh chain. for example rcooh means that after x number of carbon, the chain ends with cooh.

explanation:

"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"