15. Which of the following combinations is most likely to produce an ionic bond? Cl and Rb S and N C and O F and F Li and Na a. b. C. d. e. Letter answer to question #15: 16. Which of the following aqueous solutions would have the highest vapor pressure at 25 °C? pure water 1 m glucose (C6H12O6) a. b. c. 1 m NaNO3 d. 1 m MgCl2 e. 1 M (NH4)2SO4 Letter answer to question #16: 17. What is the formal charge on the oxygen in OCN-¹? a. 0 b. C. d. e. -1 -2 +1 +2 Letter answer to question #17: 18. Based on VSEPR, what is the molecular shape of TeBr₂? a. triangular planar b. T-shaped C. linear d. tetrahedral e. angular (bent) Letter answer to question #18: 19. The total number of o bonds in H-C=C-C=C-C=C-C=C-H is a. 5 b. 6 C. 7 d. 8 e. 9 Letter answer to question #19:

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.