front 1 Which of the following is not a criterion for defining as a mineral? | back 1 Hard |
front 2 Which of the following is a mineral as defined by a geologist? | back 2 Salt |
front 3 Which of the following best defines a mineral and a rock? | back 3 In a mineral the constituent atoms are bonded in a regular, repetitive, internal structure; a rock is lithified or consolidated aggregate of different mineral grains. |
front 4 Which of the following is not true for minerals? | back 4 They can be a liquid, solid, or gas. |
front 5 Which of the following is not a fundamental particle found in atoms? | back 5 Selection |
front 6 Atoms of the same element, zinc for example, have the same number of______. | back 6 Protons in the nucleus |
front 7 Which of the following denotes the positively charged particles in an atom's nucleus? | back 7 Protons |
front 8 An atom's mass number is 13 and the atomic number is 6. How many neutrons are in its nucleus? | back 8 7 |
front 9 Heavy elements like Pb (lead) and U (Uranium) were generated______. | back 9 During collapse of a star and subsequent nuclear systems in a supernova |
front 10 When Calcium (Ca) bonds with oxygen, it gives up two electrons. What is the charge of the Ca ion in this compound? | back 10 +2 |
front 11 Which electrons are responsible for most chemical bonding? | back 11 Outer electron shell because these electrons can be readily exchanged with adjacent atoms. |
front 12 Element 20, Ca, has what chemical property? | back 12 It behaves as a metal ion, giving up two electrons to form a +2 ion. |
front 13 Element 17 (CI) and 9 (F) | back 13 Are chemically similar because they lie directly below each other on the periodic table |
front 14 The columns of the periodic table divide atoms by their_________. | back 14 Number of valence electrons |
front 15 Atoms that share electrons have a(n)___________bond. | back 15 Covalent |
front 16 The bond between sodium (Na) and Chlorine (CI) to form halite (salt) is a(n)_________bond. | back 16 Ionic |
front 17 Atoms that have an electrical charge due to a gain or loss of electrons are called_______. | back 17 Ions |
front 18 What mineral is the hardest known substance in nature? | back 18 Diamond |
front 19 Which mineral reacts readily with cool, dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas? | back 19 Calcite |
front 20 the resistance of a mineral to abrasion is known as______. | back 20 Hardness |
front 21 The strong tendency of certain minerals to break along smooth, parallel planes is known as________. | back 21 Cleavage |
front 22 The most unreliable (variable) diagnostic property of minerals such as quartz is______. | back 22 Color |
front 23 Wood floats in water, 1 gram is defined as that mass of 1 cubic centimeter of water, a cubic centimeter of quartz weighs ~2.65 g and a cubic centimeter of galena weighs about 7.5 g. The density of these materials from highest to lowest is____________. | back 23 Galena,quartz, water, wood |
front 24 what does the tendency of micas to produce thin cleavage flakes suggest about its crystal structure? | back 24 The atoms are arranged in orderly arrangements that form strongly bonded sheets separated by weak bonds between the sheets. |
front 25 Angles are important when looking at physical properties of minerals? | back 25 Cleavages |
front 26 Which of the following physical properties is not generally used to identify most minerals? | back 26 Smell |
front 27 Which of the following describes the light reflecting and transmission characteristics of a mineral? | back 27 Luster |
front 28 When mineral fractures along a cleavage plane, what does this suggest about the crystal structure of the mineral? | back 28 The crystal structure contains planes along which chemical bonding is much weaker than other directions. |
front 29 why do minerals calcite and dolomite bubble with the mineral or its powder are placed in hydrochloric acid? | back 29 The acid reacts with the mineral to release CO2 gas that is bound into crystal as carbonate ion. |
front 30 Quartz has a characteristic conchoidal fracture, yet rock shops often sell quartz as elongate six sided objects with a pointed termination.What causes this shape? | back 30 The planar faces that form the object are crystal faces that grow when the crystals grew into a void. |
front 31 Although it is relatively common, limestone is an economically important rock type because its major constituent mineral,__________,is used in the production of__________. | back 31 Calcite, cement |
front 32 Which two elements combine to make most of the common rock forming minerals in the crust? | back 32 Silicon and oxygen |
front 33 The most common group of rock forming minerals is___________. | back 33 The silicates |
front 34 The basic building block of a silicate is composed of_________. | back 34 4 oxygens and 1 silicon |
front 35 Silicates most commonly form_________. | back 35 From cooling molten rock |
front 36 Clay is an example of____. | back 36 A silicate that forms from weathering of other silicates |
front 37 Carbonates always include__________. | back 37 Sulfate |
front 38 Which of the following minerals is a silicate? | back 38 Feldspar |
front 39 What theory dramatically improved geologist's ability to predict where certain one deposits were formed? | back 39 Plate tectonics |
front 40 Chose the option which does not fit the pattern | back 40 Calcite feldspar quartz olivine |
front 41 Which of the following is not a chemical compound? | back 41 Graphite (C) |
front 42 Carbonates always include__________. | back 42 CO3-2 |