Electronegativity is a measure of an atom’s affinity for electrons. which of the following statements is true? a: electronegativity increases as the size of atom increases. b: electronegativity decreases as the size of atom decreases. c: electronegativity increases as the size of atom decreases. c: electronegativity is not related to atom size.

The answer is option C.

That is electronegativity increases as the size of atom decreases.

Electronegativity is a measure of an atom’s affinity for electrons. When the size of atom increases, the attraction between nucleus and the shared electron decreases that is atom's affinity for electron decreases that is electronegativity decreases. So when atom size increases, electroneagtivity decreases.

i have a feeling this is a gay person trolling to make straights look bad.

"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"