Need 1
A solution of a Solid A is mixed with a few drops of barium nitrate solution
and a white precipitate forms. A dilute hydrochloric acid is then added
(with a little heat) and the white precipitate does not dissolve. Which of the
following anions was in the original solid (Solid A)? *

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.

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

Which three statements represent the benefits of performing experiments using computer simulations?