Select all that apply: adding salt to water increases its boiling point because... the hygroscopic salt attracts vapor to condense into the water, making it harder for the water to evaporate the presence of a nonvolatile solute makes the solvent nonvolatile as well ions act as centers of crystallization keeping the water in the liquid phase the ions form IMF with the dipoles of water molecules making it harder to evaporate

Which statement is true about the part of the electromagnetic spectrum that human eyes can detect? it contains only the colors of the rainbow and television waves. o it is divided into seven ranges of wavelengths. it contains ultraviolet, visible, and infrared light. it is divided into nine ranges of wavelengths.

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

Chromosome 17 is made of over million base pairs.