n three trials of a reaction to determine the concentration of a sodium hydroxide solution, the average volume of 0.1255 mol/L sulfuric acid was 19.97 mL to neutralize 20.00 mL of the base. What was the concentration of the sodium hydroxide solution? Determine the original pH value of the base.

How can the periodic table be used to predict the behavior of elements?

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?

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave