You want to determine the density of green jade. After placing the sample on an electronic balance, you determine the mass of this sample of green jade is 37.8g. Using this information and the image above,
determine the density of a sample of green jade.

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.

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude