front 1 What distinguishes the findings of Dalton from the findings of Democritus? | back 1 Dalton proved experimentally that atoms exist whereas Democritus believed in them. |
front 2 List the seven SI base units. | back 2 length - meters (m) time - second (s) amount of substance - mole (mol) electric current - ampere (A) temperature - kelvin (K) Luminous intensity - candela (cd) Mass - kilogram (kg) |
front 3 Name a unit of measure that is smaller than a gram. | back 3 ? |
front 4 How many meters are in a millimeter? | back 4 0.001 m = 1 mm |
front 5 In which phase are the molecules of a sample held rigidly together? | back 5 The solid phase is the phase in which molecules are held rigidly together. |
front 6 The graph represents the heating of water in a pot. At 150 seconds, the water has just reached a boil. If the heat is left on, what will happen to the temperature and volume of water in the pot? (All temperatures in °C.) | back 6 The temp will remain constant and the volume of the water will go down over time. |
front 7 What happens to the volume of a balloon if you put a balloon inside of a vacuum chamber and decrease the pressure around the balloon? | back 7 If the pressure around the balloon decreases then the volume of the balloon will increase. |
front 8 According to Boyle's Law, pressure and volume are inversely proportional. What does this mean will happen to volume as pressure goes up? | back 8 According to Boyle's law, as pressure goes up, volume goes down. |
front 9 What is the relationship between the temperature of a gas and the kinetic energy of the particles of the gas? | back 9 The higher the temperature of the gas, the higher the kinetic energy of the molecules of that gas. |
front 10 What are the basic assumptions of the kinetic molecular theory? | back 10
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front 11 How many protons and electrons does an aluminum ion have? | back 11 protons: 13 electrons: 10 |
front 12 Describe the types of atoms that form a: a. Covalent bond b. Ionic bond c. Metallic bond | back 12 a. covalent: two non metals b. ionic: metal and non metal c. metallic: two metals |
front 13 What family of the periodic table to each of the following belong to? a. K b. Cr c. F d. Kr | back 13 a. alkai metal b. transition metal c. halogen d. noble gas |
front 14 Name the charges that the following atoms will form an ion. a. Na b. Ca c. Al d. P e. S f. Cl | back 14 a. Na+ b. Ca2+ c. Al3+ d. P3- e. S2- f. Cl- |
front 15 What is the formula for the ionic compound formed by calcium ions and chlorate ions? | back 15 Ca(Cl3)2 |
front 16 What is the formula for the ionic compound formed by strontium and bromine? | back 16 Sr Br2 |
front 17 What is the correct name for NH4 PO4 ? | back 17 ammonium phosphate |