Add cold metal pellets to room temperature water in a calorimeter. Is the heat moving from the metal to the water or the water to the metal?

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change