One model of a DNA molecule is a twisted ladder In this model, what do the rungs of the ladder represent? ( There is actually no model just so u know)

O A. Phosphates
O B. Amino acids
O C. Nitrogen bases
O D. Sugars

Apure solvent has a vapor pressure the vapor pressure of a solution. a. equal to b. lower than c. higher than

Does the temperature affect the solubility of sugar and salt in water? if it does tell me like different temperatures with different solubilities so i can sketch down a graph

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.