description Does any element with Z <= 92mal the description ? If you checked yes, give the symbol of an element with z <= 92 that matches. An element in Period 2 and Group 4A. Yes A nonmetal in Group 7A. Yes An alkali metal with a lower atomic number than radon. Yes No A transition element in Period 4.Yes

Which of these best describes an ionic bond?

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

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?