For a total mass of water weighing 190 g, the mass of h is 21 g and the mass of o is 169
g. what is the percent composition of h in water

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.

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

How have the greenhouse gasses increased from the year 2000 to 2018