How many milliliters of concentrated nitric acid, hno3, 70 % (wt/wt) are required to prepare 1 liter of 0.250 m solution? the molar mass and density of hno3 are 63.0 g/mol and 1.36 g/cm respectively.

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.

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.