In C020 lab, we analyze compounds using TLC-plates coated with silica. Imagine if a compound you test by TLC had an Rf of 0.5. Now you discover that only plates with a less polar, non-silica coating are available. What will the new Rf of your product be if you use the same eluent? Explain.

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Summarize possible ways in which phases of matter could combine to form a solution.