Chemical changes can affect physical and chemical properties, whereas physical changes can a. chemical properties b. physical properties c. both chemical, and physical properties d. none of the above

A0.10 m aqueous solution of sodium sulfate is a better conductor of electricity than a 0.10 m aqueous solution of sodium chloride. which of the following best explains this observation? (a) sodium sulfate is more soluble in water than sodium chloride. (b) sodium sulfate has a higher molar mass than sodium chloride. (c) to prepare a given volume of 0.10 m solution, the mass of sodium sulfate needed is more than twice the mass of sodium chloride needed. (d) more moles of ions are present in a given volume of 0.10 m sodium sulfate than in the same volume of 0.10 m sodium chloride. (e) the degree of dissociation of sodium sulfate in solution is significantly greater than that of sodium chloride.

Which of the following is a way carbon enters the atmosphere volcanic activity photosynthesis deposition of settlement burial of biomass hep hurrryy

Consider the oxidation of sodium metal to sodium oxide described by the balanced equation: 4 na(s) + o2(g) → 2 na2o(s) as you can see there are letters in parentheses after each substance. show you know the meaning of these letters by filling in what they stand for: