Which of these best describes what must happen to the particles in water before it can change from one state to another?
Particles in what state of matter can spread in all directions to fill the volume of the container that holds them?
What determines a material’s state of matter?
What happens to the molecules in a lump of butter as the butter melts?
What is the atomic mass of an atom that contains 11 protons, 13 neutrons, and 11electrons?
Sodium is an element found in table salt. It contains 11 protons and 12 neutrons. How many electrons are found in a neutral atom of sodium?
What is the atomic number of an atom that contains 26 protons, 29 neutrons, and 26 electrons?
What is the charge of an Ion that has 38 protons and 43 electrons?
Which of these describes the motion and arrangement of particles in a solid?
Chlorine is an element found in table salt. Its atomic mass is 35 and it contains 17 protons. How many neutrons are found in a neutral atom of chlorine?
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