Characteristic properties can be used to describe and identify the substances, while non-characteristic properties, although can be used to describe the substances, cannot be used to identify them.
Temperature, mass, color, shape and volume are examples of non-characteristic properties.
Density, boiling point, melting point, chemical reactivity are examples of characteristic properties.
List of the properties observed by the scientist: ----------------------------------------------------------------- Property Type of property ---------------------------------------------------------------- Volume: 5 ml non-characteristic ---------------------------------------------------------------- Color: blue non-characteristic ---------------------------------------------------------------- State: liquid characteristic ------------------------------------------------------------ density: 1.2 g/cm characteristic ------------------------------------------------------------ Reaction: reacts with CO2 characteristic ----------------------------------------------------------
Explanation: The question does not include the variable or steps Brian is using so either one could be correct. It has to be the one that he is controlling though. This is because a control group is used to rule out any alternate explanations. Therefore the answer should be the one that he is trying to test out.
<span>pH = -log(H+ concentration)
so pH = -log(1.0 X 10^4) </span><span>10^-4? </span> If this helped and you have any other questions, feel free to comment on my wall. Hope this helped.
