4. If 20.0 mL of 0.10 M Ba(NO)3 are added to 50.0 mL of 0.10 M Na2CO3, will BaCO3 precipitate? (Ksp BaCO3 = 8.1x10^-9)

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 to your question is c

a) the particles of the chair are strongly held together.