Because of that, you will experience the ill effects of poor execution in everyday life and different illnesses. a few examinations have likewise demonstrated that weight can prompt malignancy. this is a significant disturbing news for individuals who are corpulent. it bodes well why they would need
to get more fit subsequent to finding out about all the conceivable outcomes that stoutness can have. alongside the physical wellbeing, heftiness is likewise terrible for mental self-view and regard. on the off chance that a man is fat and they are continually reminded about it, they will lose their
certainty and have low confidence. so also, there are numerous individuals who tend to cover their bodies with layers and layers of apparel to conceal their heftiness.
n(O) = 0,64:16 г/моль = 0,04 моль
или n(мет) = 0,04 моль -- так как металлы двухвалентные
Ме + 2HCl = MeCl₂ + H₂↑ -- только один из металлов реагирует с соляной к-той
n₁(Me) = n(H₂)
n(H₂) = 0,448л/22,4л/моль = 0,02 моль
n₂(Me) = 0,04 моль - 0,02 моль = 0,02 моль
М₂(Ме) = m/n = 1,28г/0,02 моль = 64 г/мол -- это медь
m₁(Me) = 2,58 г - 1,28 г. = 1,3 г. -- масса металла, который прореагировал с HCl
M₁ = m/n = 1,3 г/0,02 г. = 65 г/моль -- это цинк
ω(Сu) = m(Cu)/m(Me)* 100% = 1,28 г./2,58 г. *100% = 49,6%
ω(Zn) = m(Zn)/m(Me)*100% = 1,3г/2,58 г.*100% = 50,4%