Which of the following describes volume?

a. the number of particles or amount of matter
b. amount of mass contained in a certain space
c. how fast the particles of matter are moving
d. the amount of space that matter occupies

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

A250 g sample of water with an initial temperatureof 98.8 closes 6500 joules of heat. what is the finaltemperature of the water?

Which of the following observations indicates that an atom has neutrons? some uncharged particles are scattered by a beryllium atom when it hits a gold foil. some uncharged particles bounce back from a gold foil when it is bombarded with alpha particles. a radiation consisting of uncharged particles is emitted when alpha particles strike beryllium atoms. a radiation which attracts electrons is produced when a beryllium atom is bombarded with alpha particles.