A student trying to determine if a liquid was a mixture or a pure substance 3 points made several of the following observations. Which observation would
best support the conclusion that the liquid was a mixture?*
When attached to a circuit the liquid conducted electricty.
When the liquid evaporated, a white residue remained.
The liquid has a density of 1.28 g/ml.
The liquid allowed light to pass through it easily.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.