Please help explain this My teacher sent us this video but it's still really confusing. Can anyone find any other resources or explain it better?

(delete the space between you and tube)

https://www. you tube. com/watch?v=xfr64zoBTAQ

How does concentration affect reaction rate

Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?

Which of the following describes the entropy change as a solution is made from a liquid and solid