Placing a chemical reagent paper in pool water is which type of method?Group of answer choicesColorimetric paperLight Refraction DeviceDirection reading probe

A pH meter is an example of which testing method?Group of answer choicesDirection reading probeLight refraction deviceColorimetric paper

Which method can be used to measure the temperature of water?Group of answer choicesMulituse probepH meterColorimetric test paper

What are the four methods used for water quality testing?Group of answer choicesDirect Reading ProbesSensory TestingColorimetric TestingBioluminescence RetractionLight Refraction DevicesLab-tested Samples

Multiple Choice QuestionWhich method uses the color changes of several indicators to measure the pH of a solution?Multiple choice question.pH meterphenolphthaleinpH paperlitmus paper

When conducting an experiment on reactions of metals with water, what must be done before you begin?Group of answer choicesclean the surface with sandpaper to remove oxidesclean the surface with a clothallow them to sit in the test tubes for 30 minutes