| A | B |
|---|
| What is the sum of the oxidation numbers in a neutral compound? | zero |
| What is the charge of the phosphate ion in K3PO4 ? | -3 |
| According to the kinetic theory of matter, what happens to the kinetic energy as a substance goes from a solid to a liquid? | it increases |
| According to the rules for significant digits, how many significant digits will be in the answer to the problem 23.32 x 6.59 ? | three |
| Calculate the number of electrons in the element magnesium. | 12 |
| Calculate the number of electrons in the U-238 isotope. | 92 |
| Calculate the number of neutrons in the U-235 isotope. | 143 |
| Calculate the number of neutrons in the P-31 isotope. | 16 |
| Calculate the number of neutrons in the isotope carbon-14. | 8 |
| Calculate the number of protons in the element boron. | 5 |
| Calculate the the number of protons in the isotope potassium-40. | 19 |
| Choose the element that has 77 protons. | iridium (Ir) |
| Choose the element that has 79 protons ans 118 neutrons | gold (Au) |
| Choose he element that has 83 electrons. | bismuth (Bi) |
| Choose the element that has the atomic number of 49. | Indium (In) |
| Choose the state of matter in which the particles are least attracted to each other. | Gaseous |
| Choose the state of matter in which particles are most attracted to each other. | Solid |
| Choose the state of matter that flows to conform to the shape of its container and fills the entire volume of its container. | Gas particles |
| Choose the state of matter that flows, has a constant volume, and takes the shape of its container too. | liquids |
| Choose the state of matter that has a definate shape and volume. | Solids |
| Choose the state of matter that has particles with the greatest amount of kinnetic energy. | Gas >Liquids>Solids as per Kinetic Energies of matter States |
| Choose the state of matter that has the charcteristics of being hard and rigid. | Solid state |
| What happens to the distance between molecules of a substance when it melts. | it increases...because of greater kinetic energy due to greater motion |
| What happens to the distance between molecules of a substance when it vaporizes? | it increases (more so than when it melts) |
| Choose which state of matter can be most easily be compressed | Gases will resist compression less so would a liquid and solid matter |
| Classify a blueberry muffin as an element, mixture, compound, or colloid | mixture |
| Classify air as an element, mixture, compound, or colloid | mixture |
| Classify arsenic as a metal, nonmetal, or mataloid | metalloid |
| Classify boron as a metal, nonmetal, or metalloid | metaloid |
| Classify Br as a metal, nonmetal, or metalloid | nonmetal |
| Classify carbon as a metal, non metal or a metalloid | nonmetal |
| Classify carbon as an element, mixture, compound, or colloid | compound |
| Classify carbon dioxide as an element, mixture, or compound,or colloid | Compound |
| Classify copper as an element, mixture, compound or colloid | compound |
| Classify magnesium as a metal, non metal, or colloid | metal |
| Classify muddy water as an element, mixture, compound, or colloid | mixture |
| Classify Na as a metal, nonmetal or metalloid. | metal |
| Classify Rb as a metal,nonmetal or metalloid | metal |
| Classify salt water as an element mixture compound or colloid. | Mixture |
| Classify Si as a metal, nonmetal, or metalloid. | Metaloid |
