Explanation:
To a reaction to be occured
The formula is
IE is internal energy of reactant and AE is activation energy and TE is threshold energy .
So option D is correct
I think its A sorry if im wrong
Answer:
![\%Ca=19.378\%](https://tex.z-dn.net/?f=%5C%25Ca%3D19.378%5C%25)
Explanation:
¡Hola!
En este caso, basado en la información dada, es posible conocer la masa de calcio en carbonato de calcio, que de hecho es la misma en la muestra, al utilizar el siguiente esquema de cálculo:
![m_{Ca}=1,2093gCaCO_3*\frac{1molCaCO_3}{100.1gCaCO_3}*\frac{1molCa}{1molCaCO_3}*\frac{40.1gCa}{1molCa}\\\\m_{Ca}=0.48444gCa](https://tex.z-dn.net/?f=m_%7BCa%7D%3D1%2C2093gCaCO_3%2A%5Cfrac%7B1molCaCO_3%7D%7B100.1gCaCO_3%7D%2A%5Cfrac%7B1molCa%7D%7B1molCaCO_3%7D%2A%5Cfrac%7B40.1gCa%7D%7B1molCa%7D%5C%5C%5C%5Cm_%7BCa%7D%3D0.48444gCa)
Finalmente, calculamos el porcentaje requerido como sigue:
![\% Ca=\frac{0.48444g}{2.5000g} *100\%\\\\\%Ca=19.378\%](https://tex.z-dn.net/?f=%5C%25%20Ca%3D%5Cfrac%7B0.48444g%7D%7B2.5000g%7D%20%2A100%5C%25%5C%5C%5C%5C%5C%25Ca%3D19.378%5C%25)
¡Saludos!
<span>The metalloids; boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), polonium (Po) and astatine (At) are the elements found along the step like line between metals and non-metals of the periodic table.</span>
Answer:
207g
Explanation:
Given compound:
Ca(ClO₃)₂
The equivalent mass can be derived by summing the molar masses of each atom
Molar mass of Ca = 40
Cl = 35.5
O = 16
Now solve;
Molar mass = 40 + 2(35.5 + 3(16)) = 207g