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A student finds that an unidentified mineral sample can scratch gypsum but is unable to scratchquartz. The student has made an observation about which property of the sample? hardness color luster streak that the mineral is below 5.5 on Moh's scale the mineral is harder than the glass the mineral is a 3 the mineral is softer than the glass When trying to test for the hardness of a mineral, if it does scratch glass then you know..... ruler thermometer hammer scale A student uses a white ceramic plateand rubs the mineral against it.The student notices the gold mineralleaves a black line.Which property of the mineral is thestudent testing? hardness luster color streak If you are working with an irregular objectsuch as a rock or a mineral, howdo you determine its volume? use a triple beam balance Water displacement use an electronic balance L X W X H cut each mineral drop each item and see how it bounces rub each together to see if it scratches the other A student has samples of quartz and orthoclase. How can the student use this table to determinewhich mineral is quartz and which is orthoclase? see which mineral shines under a light Mineral luster refers to ..... its hardness on the Moh's scale the way light reflects off the mineral how much it's mass is its color A student observes a substance that is highly reflective (shiny) and able to conduct electricity. The substance also has a high melting point. Which is the most likely classification for this substance? mineral metalloid nonmetal metal A. conduction B. convection c. absorption d. radiation A student on a field trip was required to calculate thedensity of a mineral containing rock.The rock had a volumeof 100 mL and a mass of 500 grams. What is the density of the rock? 360 g/mL 5 g/mL 0.2 g/mL 20 g/mL Just Feldspar all of them Mica and Feldspar Quartz and Feldspar and Mica Based on the mineral table at the left, which minerals would scratch talc? Why do some substances float in water? They are warmer than water they are cooler than water They are less dense than water They are more dense than water Which of the following tools are necessary to determine the density of a cube of metal? hammer and streak plate balance and ruler balance and a calculator streak plate and glass plate Because minerals are always brown the same mineral may come in different colors sometimes its hard to tell the color not everyone has the tool for determining color When determining the ID of a mineral, why is color unreliable? A substance has a volume of 20 cm3 and a mass of 64 grams.What is the density of the substance? 84 g/cm3 1280 g/cm3 0.31 g/cm3 3.2 g/cm3 A substance has a mass of 24.4 grams and a volume of 4 mL.What is it's density? 20.4 g/mL 6.1 g/mL 0.16 g/mL 97.6 g/mL The student usedwater displacementto determine the volume of the mineral.Which of the followingis the best answer for the volume of the mineral? 22 mL 17 mL 20 mL 3 mL Which category of elements may or may not be shiny, are semi-conductors, and may be brittle or malleable? metal nonmetal metalloid can't tell A student is working to create a circuit that lights up a lamp. She runs copper wire from a battery to a lightbulb. Why is copper the best choice of material for this circuit? it is brittle and ductile it is ductile and a good conductor it is shiny and solid it is malleable and insulates Renee fills a graduated cylinder to the 20 mL mark. She places the mineral intothe cylinder and it rises to 53 mL.What is the volume of the mineral 73 mL 33 mL 23 mL 13 mL Which of the following are properties of metalloids? gas at room temperature, poor conductor shiny, good conductor, malleable semi-conductor good conductor, brittle, On the Periodic Table nonmetals are found...... to the left of the zig zag line they are not on the periodic table to the right of the zigzag line along the zigzag line Students have a rock sample that may containthe mineral hematite. They know that hematitehas a red or rusty streak. How can the students determine the color of the streak in the rock sample? rub it against a ceramic plate see if it scratches glass look how light reflects off the mineral use a hammer to break it
metallic dull glassy black-brown A student fills a graduated cylinder with 15mL of water. The lab partner finds the mass of the marble tobe 5.2 grams, then drops the marble into thegraduated cylinder. If the meniscus onthe cylinder is now at 16.3 mL, what is the density of the marble 4 g/mL 1.7 g/mL 0.34 g/mL 0.31 g/mL |