What are the 2 characteristics of all matter

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 statement would indicate the presence of an acid

Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold