Identify the equations that show ionization. Check all that apply
1.NaCl(s) → Na+ (aq) + C1 (aq)
2.HCl(g) +H20(1) H30+ (aq) +Cr (aq)
3.O2(g) → O2(aq)
4.CO2(g)+2H20(1)→ HCO3(aq)+H30* (ag)
5.CaCl2(s) → Ca2+ (aq) + 2Cr (aq)

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

the answer is c i took the test