Ricardo wants to determine the length of a strip of zinc metal. what is the si unit for length?

How is the atomic number of a nucleus changed by alpha decay

Which metals are called noble metals

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?