2.5 i believe i'll keep you updated i'm still trying to check my answers
Hola!
We know,
1 Mole of anything has 6.02 ×
particles
According to Question,
6.02 ×
= 1 Mole
Thus,
1.8 ×
/ 6.02 ×
= 0.33 Moles
hope it helps!
Answer:
F = -5.91 E-10 N
Explanation:
The force of attraction between the ions Ca²⁺ and O²⁻ is given by the Coulomb's Law:
<em>where K: is the Coulomb's constant, q₁ and q₂: are the charges of the electrons (e = 1.602E-19 C) of the ions, and r: is the distance between the charges. </em>
<u>With q₁ = charge of Ca = (2+)(1.602E-19 C), q₂ = charge of O = (2-)(1.602E-19 C), K= 9E09 N.m².C⁻² and r = 1.25nm = 1.25 E-09 m, the force of attraction between the ions is:</u>
Therefore, the force of attraction between a Ca²⁺ ion and O²⁻ ion is -5.91 E-10 N.
I hope it helps you!
The answer is c this is the answer
Answer:
i have no idea and i dont get it