A) particles in solids do not move B) particles in gases vibrate in place C) particles in liquids are still D) particles of matter are in constant motion
A) evaporation B) condensation C) vaporization D) sublimation
A) sugar B) salt C) sand D) Kool-Aid
A) metal rusting B) aluminum foil folding C) paper ripping D) ice melting
A) plasma B) liquid C) solid D) gas
A) water evaporating into water vapor B) reaction between baking soda and vinegar C) plastic burning D) apple rotting
A) All lithium atoms have 3 neutrons in its nucleus B) All carbon atoms have exactly 6 protons in its nucleus C) All helium atoms have 4 protons in its nucleus D) It is possible for carbon atoms to have either 6 or 7 protons in its nucleus
A) O B) S C) F D) Ne
A) weight B) mass C) density D) bouyancy
A) positively charged B) a base C) an acid D) negatively charged
A) gas B) solid C) liquid D) plasma
A) N3 B) H2 C) NaOH D) O2
A) heating the tea B) using powdered sugar instead of sugar cubes C) adding more ice D) stirring the tea
A) Arsenic B) Bromine C) Bohrium D) Rhenium
A) Dalton, Rutherford, Thomson, Bohr B) Dalton, Thomson, Bohr, Rutherford C) Dalton, Thomson, Rutherford, Bohr D) Bohr, Dalton, Rutherford, Thomson
A) The atomic number is 17, the atomic mass (weight) is 35.453, and it (Chlorine) is in the same family as Fluorine. B) Chlorine is in group 17, and has 2 energy levels, and is in the Halogen family. C) Chlorine is in the same family as sulfur, has 18 neutrons in its nucleus and is a nonmetal gas. D) Chlorine has 7 valence electrons, and has 35 protons in its nucleus, and is in period 3.
A) Tc & Ru B) Na & Mg C) Sb & Te D) I & At
A) Particles in solids vibrate in place. B) Particles in gases have lots of energy and move freely. C) Particles in liquids flow around each other. D) Solid particles do not move.
A) element B) mixture C) chemical change D) compound
A) evaporation B) sublimation C) condensation D) vaporization
A) atomic weight B) atomic number C) mass number D) atomic mass
A) He was the first to propose that an atom was mostly empty space. B) He proposed that an atom is a positively charged sphere with electrons embedded in it. C) His model showed electrons moving in specific layers, shells, or orbits. D) He was the first to suggest that different elements have atoms of different masses.
A) Yes B) No
A) John Dalton B) J.J. Thomson C) Ernest Rutherford D) Niels Bohr
A) electron cloud B) nucleus C) molecule D) plum pudding model
A) constant B) dependent variable C) control D) independent variable |