Answer:
3 × 10¹⁰⁹
Explanation:
2Cr (s) → 2Cr³⁺ + 6e⁻
and,
Ec° for the above reaction = 0.74 V
also,
3Cu²⁺ (aq) + 6e⁻ → 3Cu(s)
and,
Ea° for the above reaction = 0.34 V
Now,
The cell potential, E° = 0.34 + 0.74 = 1.08
E° = 
thus,
0.34 = 
here, n is the number of electrons exchanged
n = 6
1.08 = 
or
㏒ k = 109.44
taking anti-log both sides
we get
k = 3 × 10¹⁰⁹
Hence, the answer is option (A) 3 × 10¹⁰⁹
Explanation:
Given elements:
F, Sr, P, Ca, O, Br, Rb, Sb, Li, S
Elements with the same chemical reactivity will belong to the same group on the periodic table. This implies that elements in the same column will have the same reactivity;
Li and Rb are both alkali metals in group 1
Ca and Sr are both alkali earth metals in group 2
F and Br are halogens in group 7
O and S are group 6 elements
P and Sb are both in group 5 on the periodic table
So these groupings show elements with the same chemical properties.
Answer:
KCIO
Explanation:
the only reason is because I looked online and the meaning for that is potassium hypochlorite my guy so if this is not right then I'm sorry but good luck.
This was an answer i found on google from Nasa
Boiling Point, Melting Point, Viscosity, Surface Tension. Decrease: Vapor Pressure.