Answer:
CaCI2 + H2O = Ca(OH)2 + HCI
 
        
                    
             
        
        
        
It will also be halved... but the relationship is with Kelvin not c.  So 273 +273 = 546 K.  half of that is 273 K, then subtract 273... you get 0 degrees c
        
             
        
        
        
Answer:
H^+(aq) + OH^-(aq) —> H2O(l) 
Explanation:
We'll begin by writing the balanced equation for the reaction. 
2HCl(aq) + Ca(OH)2(aq) —> CaCl2(aq) + 2H2O(l) 
Ca(OH)2 is a strong base and will dissociates as follow:
Ca(OH)2(aq) —> Ca^2+(aq) + 2OH^-(aq)
HCl is a strong acid and will dissociates as follow:
HCl(aq) —> H^+(aq) + Cl^-(aq) 
Thus, In solution a double displacement reaction occurs as shown below: 
2H^+(aq) + 2Cl^-(aq) + Ca^2+(aq) + 2OH^-(aq) —> Ca^2+(aq) + 2Cl^-(aq) + 2H2O(l) 
To get the net ionic equation, cancel out Ca^2+ and 2Cl^- 
2H^+(aq) + 2OH^-(aq) —> 2H2O(l) 
H^+(aq) + OH^-(aq) —> H2O(l) 
 
        
             
        
        
        
<span>There are more than 550 active
volcanoes in the world, almost all of which are located at convergent
tectonic plate boundaries. This includes all of the volcanoes in the
Pacific Ring of Fire, such as Japan's Mount Fuji, as well as Mount Saint
Helens, Popocafepetl in Mexico and Azul in the Andes Range.</span>
        
             
        
        
        
Answer:
Explanation:
If an atom has 13 electrons then it belongs to p-block of periodic table.
s level can accommodate 2 electrons.
p level can accommodate 6 electrons.
13 means 1s2 2s2 2p6 3s2 3p1.
As you can see there totally 5 sub-shells.
Total number of shells are 3(1,2,3).