Name Date ID. Integrated Physics and Chemistry (1) Interim Assessment Third Grading Period

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1 Name Date ID Integrated Physics and Chemistry (1) Interim Assessment Third Grading Period 1. The MSDS sheet for a chemical states, "use only in a well ventilated area." This caution probably indicates that the chemical is corrosive to skin. is under high pressure. gives off dangerous vapors. will burn the skin on contact. 2. When you heat a test tube of water using a burner, what is the most important safety precaution? use cold water wear safety googles tilt the test tube use low flame 3. Which state (phase) of matter has a definite volume but no definite shape? vapor gas solid liquid 4. A geologist found a rock that contained different colored particles. The rock would be classified as a(n) mixture. compound. element. fossil. IPC (1) Interim Assessment (3) Page 1

2 5. Which process involves a chemical change? Dissolving a solid in a liquid. Boiling water into steam. A battery making electricity. Melting a copper penny. 6. Which is required to cause a substance to undergo a change in state (phase)? Heat is gained or lost. A push or pull is applied. Atoms must split or combine. New matter must be formed. 7. A man went to a jewelry store to sell a bracelet he found at the lake. He did not know what it was made of, but he knew the jeweler could help him find this out. The jeweler made some measurement and discovered the bracelet had a mass of 415 grams, and it occupied a volume of 50 cm 3. Use the following density chart to identify the metal of which the bracelet is made. Density = mass/volume Metal Density in g/cm 3 Platinum Gold 19.3 Silver 10.5 Copper 8.3 Platinum Gold Silver Copper IPC (1) Interim Assessment (3) Page 2

3 8. A bar of iron and a bar of steel will both sink when placed in water. However, an aircraft carrier which, is made of iron and steel, floats in water. This is explained using the concept of weight. buoyancy. viscosity. composition. 9. Which atomic particle is found outside the nucleus of the atom in regions called orbitals? photon proton neutron electron 10. Neutral atoms can become charged by loosing or gaining photons. protons. neutrons. electrons. 11. An atom of the element Zinc has an atomic number of 30 and a mass number of 65. Which of the following is the correct number of neutrons in an atom of zinc? IPC (1) Interim Assessment (3) Page 3

4 12. Which part of the periodic table contains metals that are the most reactive? the far left side the center section the far right side the bottom section 13. If a new element was discovered, and it was placed in the same group (column) as Chlorine, it would probably be classified as a metal. nonmetal. noble gas. semiconductor. 14. Which type of atomic bond is formed between atoms of opposite charges? metallic covalent structural ionic 15. Gold is often found in nature in the form of pure gold nuggets, and not combined with other substances. This would indicate that gold is a(n) mixture. compound. element. solution. IPC (1) Interim Assessment (3) Page 4

5 16. Nick used sandpaper to make a rough piece of wood smooth. What kind of change did Nick observe in both the sandpaper and the wood? a physical change a chemical change a change in state a change in density 17. Which of the following combinations of elements form due to covalent bonding? a metal with a metal a nonmetal with a nonmetal a metal with a nonmetal a liquid with a gas 18. Which of the following compounds is the correct formula when calcium (Ca +2 ) combines with chlorine (Cl -1 )? CaCl Ca 2 Cl CaCl 2 2CaCl 19. Name this compound: Na 2 S sodium sulfur sodium sulfide sodium sulfate sodium sulfite IPC (1) Interim Assessment (3) Page 5

6 20. When a chemist combined 12 grams of Carbon, 11 grams of Oxygen, and 22 grams of Hydrogen, he formed a compound we call sugar. How much sugar was formed? 11g 12g 22g 45g 21. An investigation was performed where metal compounds were heated and different spectrum colors were observed as indicated in the chart below: Metal Compound Barium Lithium Potassium Sodium Magnesium Strontium Copper Color Produced Green Red Orange Yellow White Purple Blue Later, a student mixed two metal compounds and observed a pink spectral color. Which two metal compounds can we infer were mixed? Copper and Sodium Barium and Lithium Strontium and Potassium Lithium and Magnesium IPC (1) Interim Assessment (3) Page 6

7 22. The results of heating a metal object is indicated in the graph below. The vertical axis (Y) is measured in C, in units of 100 from 0 to 1,000, and the horizontal axis (X) is time in minutes from 0 to 28 minutes. Looking at the graph, we see that the temperature of the metal after 16 minutes was 600 C. Based on the observed trend, predict the temperature after 22 minutes Jesse correctly classified salt as a compound. Which of the following could he state for his reason? It is made of a metal and a nonmetal. Salt has a chemical formula. Like all compounds, salt dissolves in water. Only compounds contain different elements. IPC (1) Interim Assessment (3) Page 7

8 24. The chart above indicates the "thickness" of four different catsups. All four claim to be the "thicker" catsup. All catsups are in the same size and shape bottle. As a consumer, what conclusion can you draw about how fast they each should poor from the bottle? If all bottles are the same, then all samples should flow the same. Sample C pours out of the bottle twice as slow as others. Sample B comes out of the bottle the fastest of the four samples. Sample A tastes better than the three other samples tested. Read the passage Bread Making to answer question 25, 26, 27 and What do you think was the author s purpose in writing the article? A. Provide a recipe for bread that taste and smells good B. Inform the reader about bread making through the ages C. Explain the chemical reactions of bread making D. Provide an example of the application of chemistry in daily life 26. Based on information contained in the article, if you wanted to make un-leavened bread, which of the following should be eliminated from the process? A. Water B. Salt C. Yeast D. Flour IPC (1) Interim Assessment (1) Page 8

9 27. Which terms should be placed in the blanks to correctly indicate the sequence that produces bread? is mixed with yeast,, and salt, and then the mixture is baked to produce what we call bread. A. Water, flour B. Water, carbon dioxide C. Baking powder, alcohol D. Proteins, gluten 28. Based on information contained in the passage, salt is added for two reasons. One reason is to improve flavor. What is the other reason? A. Improve the browning of the bread B. Slow down the rising process C. Make the bread more chewy D. Prevent the bread from spoiling IPC (1) Interim Assessment (1) Page 9

10 Bread Making From the earliest times, bread making has been an essential art of civilization. Good bread owes its existence to chemistry and chemical reactions. The major ingredients in bread are yeast, flour, water and salt. Each is included in the recipe for a reason. Flour contains starch and proteins. Flour and water are mixed with yeast to produce dough. As the dough is mixed, water and proteins in the dough form tangled molecular chains called glutens. When the dough is kneaded, the chains align and the dough becomes smooth. The starch forms a jelly-like material with the water and gives structure to the dough. Yeast are single cell organisms that are related to molds. When activated by water, yeast digest starch in the flour and releases carbon dioxide and alcohol. In bread making, the carbon dioxide bubbles are trapped in the dough by the gluten. As the yeast produces carbon dioxide, the dough rises or leavens. Salt adds flavor and prevents the gluten from breaking down and leavening the dough too quickly. When the bread is baked, the trapped gas bubbles expand and cause the dough to rise even further. During baking, yeast cells are killed and the alcohol evaporates, giving off the tempting aroma of baking bread. IPC (1) Interim Assessment (1) Page 10

11 Ion Chart For use on IPC and Chemistry Interim Assessments Common Monatomic Ions Li Ba Al Pb N O F Na Mg Fe Sn P S Cl K Ca Cr As Se Br Rb Sr Mn I Cs Cu Co Cu Ag Fe Be Hg Sn Co Mn Cr Pb Ni Zn Common Polyatomic Ions -1 Charge -2 Charge -3 Charge Formula Name Formula Name Formula Name C 2 H 3 O 2 Acetate HPO 4 Hydrogen PO 3 Phosphite Phosphate HCO 3 Hydrogen SO 3 Sulfite PO 4 Phosphate Carbonate HSO 4 Hydrogen Sulfate SO 4 Sulfate NO 2 Nitrite CO 3 Carbonate +1 Charge NO 3 Nitrate CrO 4 Chromate NH 4 Ammonium CN Cyanide Cr 2 O 7 Dichromate OH Hydroxide SiO 3 Silicate MnO 4 Permanganate ClO 2 Chlorite ClO 3 Chlorate IPC (1) Interim Assessment (1) Page 11