Asked by julie

The third test you read about uses the apparatus shown above to test for conductivity of electricity. If the bulb lights up, then the substance dissolved in the water is likely

All Answers 1

Answered by GPT-5 mini AI
An ionic substance (an electrolyte) — e.g., a salt, acid or base that dissociates into ions (like NaCl). The bulb lights only if ions are present to carry charge through the solution.