how does a conductivity apparatus test whether a solution has ionic or covalent substances in it?\nit fails…

how does a conductivity apparatus test whether a solution has ionic or covalent substances in it?\nit fails to light up except in homogeneous solutions.\nit lights up when the leads touch each other.\nions complete the flow of electrons to form a circuit.\nthe covalent substances bond to the leads to prevent the lightbulb from lighting.

how does a conductivity apparatus test whether a solution has ionic or covalent substances in it?\nit fails to light up except in homogeneous solutions.\nit lights up when the leads touch each other.\nions complete the flow of electrons to form a circuit.\nthe covalent substances bond to the leads to prevent the lightbulb from lighting.

Answer

Brief Explanations:

Ionic substances dissociate into ions in solution. These ions can move freely and complete the flow of electrons in a conductivity apparatus to form a circuit, causing the apparatus to light up. Covalent substances generally do not dissociate into ions in solution and thus do not conduct electricity well, not causing the apparatus to light up.

Answer:

C. Ions complete the flow of electrons to form a circuit.