Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Students will be able to make measurements showing that whether the process is a change of state, dissolving, or a chemical reaction, the total mass of the substances does not change. Note: In the ...

Introduction Have you ever added a spoon of sugar to your tea and wondered why it disappeared? Where did it go? The sugar did not actually disappear—it changed from its solid form into a dissolved ...

Sugar, that amazingly sweet treat some of us just can’t get enough of, has long been the fascination of children (and those with a child-like sweet tooth). Its ability to be melted down into a ...

WASHINGTON, D.C., June 6, 2017 -- The solubility of any given substance -- the measure of how well the substance dissolves into another substance referred to as the solvent -- depends on basic ...

Despite the importance of predicting solubility, it is not an easy matter. One approach, using 'brute force' simulations, requires long computing times. Other techniques, while faster, fail to predict ...