Answer: (4) 
Explanation:-
According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions 
when dissolved in water and an acid is defined as a substance which donates hydronium ions 
in water.
1. 
is a strong electrolyte and thus dissociate in water.
2. 
is a non electrolyte and thus do no dissociate in water.
3. 
is a strong electrolyte and thus dissociate in water.
4. is a weak electrolyte and thus partially dissociate in water.
To find the mass of the water, you will first need to find the mass of a dry 100 mL beaker.-------51.377g
<span>Next, find the mass of the 100 mL beaker containing your water sample. ------------------------ 101.23g hope this helps :()</span>
Heat energy released here
Q = mass x specific heat capacity of water x deltaT
= 25.0 x 4.184 x (-10.0)
= - 1046 Joules
1046 Joules of heat energy is released in this process.
A is probably the best answer
