Pl help Plan a controlled experiment to investigate how much the temperatures of cold sand and cold water change when hot
water is added to them. Assume you have access to water, sand, containers, ice, a heat source, a scale, and
thermometers. Summarize your experiment in a few sentences.

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

What is the polyatamic ion of thiosulfate

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive