Draw a six-carbon-chain portion from isotactic polypropylene, in which all of the CH3 groups point in the same direction, that is, either all behind or all in front of the plane of the computer screen. X represents the continuation of the polymer chain. Do not add any bonds to X.

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

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?

What does a numerical subscript following an element in a chemical formula mean?