Arabia Mountain High School



Practice Test 1 Name: ___________________________________ Teacher: _______________ Period: ____Show all calculations as applicable in order to receive credit.____1.Which is the correct measurement for location marked by the arrow?a.17.076c.17.76b.17.8d.17.7____2.The accepted value is 29.35. Which correctly describes this student’s experimental data?TrialMeasurement129.48228.97329.27a.accurate but not precisec.both accurate and preciseb.precise but not accurated.neither accurate nor precise____3.An object has a mass of 26.94 grams and a volume of 2.568 cubic centimeters. What material is it likely to be made of?SubstanceirongoldsilvercopperDensity (g/cm3)7.87419.3210.498.92a.Ironc.Silverb.Goldd.Copper____4.The accepted value for a quantity is 5.67 g. If the measured value is 5.89 g, what is the percent error?a.1.04%c.3.74%b.3.74%d.3.9%____5.Which is the product of these numbers, to the appropriate number of significant digits? 56.2 ? 9.2057 = a.517c.517.36b.517.4d.517.00____6.A bottle contains 3.100 mL of a liquid. The total mass of the bottle and the liquid together is 6.300 g. The mass of the empty bottle is 4.240 g. What is the density of the liquid?a.0.665 g/mLc.1.505 g/mLb.1.368 g/mLd.2.032 g/mL____7.Which is the state of matter that has a definite shape and definite volume?a.solidc.gasb.liquidd.Plasma____8.Which is the state of matter shown in this figure?a.solidc.gasb.liquidd.plasma____9.Which is the state of matter shown in this figure?a.solidc.gasb.liquidd.plasma____10.Which is a compound?a.sodiumc.carbon dioxideb.sea waterd.brass____11.A 25.0-gram sample of magnesium oxide contains 10.8 grams of magnesium. What is the percent of oxygen by mass in this compound?a.89.2 %c.43.2 %b.14.2 %d.56.8 %____12.Which technique uses a porous barrier to separate a solid from a liquid?a.Chromatographyc.Distillationb.Crystallizationd.Filtration____13.Which of the following substances is an element?a.Baking sodac.Saltb.Irond.Sugar____14.Which of the following substances is a mixture?a.Baking sodac.Saltb.Gasolined.Sugar____15.A chemical composition of two or more different elements joined together in fixed proportions is known as a(n) ____.poundc.homogeneous mixtureb.elementd.heterogeneous mixture____16.The law of ____ states that a compound is always composed of the same elements in the same proportion by mass.a.conservation of energyc.definite proportionsb.conservation of massd.multiple proportions____17.Which method is best for removing the pulp from orange juice?a.distillationb.light absorptionc.electrolysisd.gas-liquid chromatographye.filtration____18.Express 4.220 ? 102 mL in standard notation.a.0.0422 mLb.0.04220 mLc.422 mLd.422.0 mLe.4220 mL____19.A standard sheet of paper is 8.5 ? 11 inches. What is the surface area, in cm2, of one side of a sheet of paper?a.14 cm2b.37 cm2c.94 cm2d.240 cm2e.6.0 ? 102 cm28.5 ? 11 inches = 94 in2 x (2.54 cm/1 inch)2 = 6.1 x 102 cm2____20.How many ounces are contained in a 2.0 L soft drink bottle? (1.00 ounce = 29.6 mL)a.0.017 ozb.0.068 ozc.59 ozd.68 oze.1.4 ? 102 oz2.0 L x (1000mL/1L) x (1.00 oz/29.6 mL) = 68 oz____21.How many miles are covered in a 15 km race? (1 mile = 5280 feet, 12 inches = 1 foot, 1 inch = 2.54 cm)a.7.1 mileb.9.3 milec.11 miled.15 milee.26 mile15 km x (1mile/1.609 km) = 9.3 mile____22.All of the following are examples of chemical change EXCEPTa.the fermentation of wine.b.the tarnishing of silver.c.the condensation of steam.d.the combustion of butane gase.the rusting of iron.____23.All of the following are examples of a physical property EXCEPTa.the density of oxygen.b.the boiling point of dry ice.c.the color of copper.d.the electrical conductivity of aluminum.e.the rusting of iron.____24.An 8.00-g sample of aluminum reacts with oxygen to form 15.20 g of aluminum oxide. How many grams of oxygen are used in the reaction?a.1.50 gc.8.00 gb.7.20 gd.23.2 g____25.Which of the following formations is a physical property of copper?a.A deep blue solution when in contact with ammonia.b.A new substance when combined with nitric acid.c.A green copper carbonate compound when in contact with moist air.d.A formation of a drill gauge and wire.____26.A 76.00-g sample of an unknown compound contains 12.90 g of sulphur. What is the percentage by mass of sulphur in the compound?a.0.17 %c.63.10 %b.16.97 %d.88.90 %27.If 19.9 grams of copper are burned in air to produce 25.0 grams of copper oxide, what is the mass of oxygen from the air that is needed?Mass oxygen = 25.0 g – 19.9 g = 5.1 g28.Calculate the area of a rectangular piece of land with a length of 8.0 ? 105 cm and a width of 4.0 ? 103 cm. Express your answer in meters. Area = 8.0 ? 105 cm x 4.0 ? 103 cm = 3.2 x 109 cm2 x (1m/100 cm)2 = 3.2 ? 105 m2 ................
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