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11 Nov 2019
Sarvey f Chemistry I Exam #1 Spring 2018 Print Name For the multiple choice questions, write the leter of the correct answer on the space provided on the left. 1. Which of the following conversion is incorrect? a) 1 meter= 1000 millimeters b)500 ceitincters 0.5 meters c) 1 kilometer 1000 meters 010 millimeters-1ã 2. The number 638.603 rounded to 3 significent figures is a) 6386 b) 638 c) 638.60 d) 639 3. Calculate the mass of a liquid with a density of 4.2 giml and a volume of 33 ml in g. a) 7.86 b)0.13 c)138.6 4. The mass of an empty graduated cylinder was 100 g. After adding 30 ml of water the mass of the d)288 graduated cylinder became 130g. When metal beads weighing 75g were a the water level rose to 55 ml. What is the density of the metal beads? a) 136 giml d to the gradated cylinder b) 3.0 g/mi )1.2 g'ml d) 0.55 g/ml 5. A branch falls in a lake and floats on the surface. This is because a) its density is greater than water Its density is equal to wator b) Its density is less than water d) lIts density is less than air 6.A student needs to find the volume of a sample of metal pellets in order to determine its density. To find an accurate volume, she should: a) Use a ruler to measure the dimensions of the sample b) Pour the sample in an empty beaker and record the level of the dry sample c) Weigh the sample on a platform triple beam balance d) Use water displacement 7. Inthe heating curve for water, the plateau at100°C represents d) a andc b Specific Heat c) Liquid converting to gas a) Boiling Point 8. When water molecules gain heat energy c Temperature rises d)a and c b Temperature lowers a) They move faster 9·"The amount of heat required to melt l gram of ice," is defined as: Heat of Fusion Condensation a) Specific heat Heat of Vaporization e) by the water? (Heat of Fusion-3341g, Specific heat-4.184 J/gâ a. 32.3 10. 100.0 grams of water was heated from 221 â to 992 â How many kilojoules were absorbed d. 33.4 b. 32,300 d. Group 18 11. The Alkali Earth Metals are located in: c. Group 17 b. Group 2 a. Group I
Sarvey f Chemistry I Exam #1 Spring 2018 Print Name For the multiple choice questions, write the leter of the correct answer on the space provided on the left. 1. Which of the following conversion is incorrect? a) 1 meter= 1000 millimeters b)500 ceitincters 0.5 meters c) 1 kilometer 1000 meters 010 millimeters-1ã 2. The number 638.603 rounded to 3 significent figures is a) 6386 b) 638 c) 638.60 d) 639 3. Calculate the mass of a liquid with a density of 4.2 giml and a volume of 33 ml in g. a) 7.86 b)0.13 c)138.6 4. The mass of an empty graduated cylinder was 100 g. After adding 30 ml of water the mass of the d)288 graduated cylinder became 130g. When metal beads weighing 75g were a the water level rose to 55 ml. What is the density of the metal beads? a) 136 giml d to the gradated cylinder b) 3.0 g/mi )1.2 g'ml d) 0.55 g/ml 5. A branch falls in a lake and floats on the surface. This is because a) its density is greater than water Its density is equal to wator b) Its density is less than water d) lIts density is less than air 6.A student needs to find the volume of a sample of metal pellets in order to determine its density. To find an accurate volume, she should: a) Use a ruler to measure the dimensions of the sample b) Pour the sample in an empty beaker and record the level of the dry sample c) Weigh the sample on a platform triple beam balance d) Use water displacement 7. Inthe heating curve for water, the plateau at100°C represents d) a andc b Specific Heat c) Liquid converting to gas a) Boiling Point 8. When water molecules gain heat energy c Temperature rises d)a and c b Temperature lowers a) They move faster 9·"The amount of heat required to melt l gram of ice," is defined as: Heat of Fusion Condensation a) Specific heat Heat of Vaporization e) by the water? (Heat of Fusion-3341g, Specific heat-4.184 J/gâ a. 32.3 10. 100.0 grams of water was heated from 221 â to 992 â How many kilojoules were absorbed d. 33.4 b. 32,300 d. Group 18 11. The Alkali Earth Metals are located in: c. Group 17 b. Group 2 a. Group I
Sixta KovacekLv2
17 Jul 2019