Which substance is a conductor of electricity ?
(1)NaCl(s)
(2)NaCl (l)
(3)C6H12O6(s)
(4) C6H12O6 (l)
thanks for any help !
NaCl(liquid)
Just to add the the correct answer - NaCl solid - the ions are not free to move around so cannot conduct electricity that is the difference.
The substance that is a conductor of electricity is (2) NaCl (l), which is liquid sodium chloride. When dissolved in water, sodium chloride dissociates into sodium (Na+) and chloride (Cl-) ions, which allow the flow of electricity.
To determine which substance is a conductor of electricity, we need to consider their ability to conduct electric current. Electric current is carried by the movement of charged particles, such as ions or electrons.
(1) NaCl(s) - Sodium chloride in solid form does not conduct electricity because the ions are held in fixed positions and cannot move freely.
(2) NaCl(l) - Sodium chloride in liquid form, also known as an aqueous solution, can conduct electricity. When dissolved in water, sodium chloride dissociates into positive sodium ions (Na+) and negative chloride ions (Cl-), which are free to move and carry electric charge.
(3) C6H12O6(s) - The chemical formula C6H12O6 represents glucose, a sugar molecule. In solid form, glucose does not conduct electricity because it does not contain charged particles.
(4) C6H12O6(l) - Glucose in liquid form, specifically dissolved in water, also known as an aqueous solution, does not conduct electricity. Glucose does not dissociate into ions when dissolved in water and, therefore, cannot carry electric charge.
So, the correct answer is (2) NaCl (l) - Sodium chloride in liquid form.