Expectations for Unit Two: Mixtures and Compounds Proof Pass

Transcription

1 Name: Period: Expectations for Unit Two: Mixtures and Compounds Proof Pass You must complete two out of the three in order to take the Unit Two Proof. If your proof passes are finished in class on the day of the review (the class period before the test), then I can look them over and give suggestions for study: 1. Vocabulary 2. Guided Notes 3. Test Prep Unit Proof 1. Quizzes. There will be at least two quizzes during this unit on Matter and Its Properties. The quizzes will not be a surprise; you will be reminded to study for them the class period before. (15 points total) 2. Bell Ringers. Nearly every day there will be a bell ringer. You will turn bell ringers in at least three times during each unit, though you may be called on to hand them in more than once, particularly if you are struggling to complete them or having trouble with course content. (15 points) Bell ringers will be kept on notebook paper, though sometimes there will be a separate handout. 3. Labs. There are several labs scheduled throughout this unit. You will be asked to turn in two of them for credit. They are worth 10 points each. (20 points) 4. Unit Test. The unit test will cover all the learning targets for Unit One. In order to take the test in class, on time, you must turn in 2 of the three proof passes. Scheduled test date: (50 points) Important Dates Graded proofs will be returned by. Retakes will be available until. Retakes are only given if all THREE proof pass assignments are complete, as well as any additional work your teacher thinks is necessary. Plan to pass the first time! Included in this packet: 1. Vocabulary List with directions for completion 2. Guided Notes with directions for completion 3. Test Prep with directions for completion Semester 2 Foundations 1

2 Unit Two: Mixtures and Compounds Vocabulary Proof Pass The vocabulary list should be complete on the day of the test; this is one of your proof passes for unit two. Demonstrating knowledge on this list will help you prepare you for the final proof for the unit. Definitions can be found a variety of ways. You can use the class blog to access a semester glossary (blogs.bethel.k12.or.us/npetersen/). This is done by going to the blog, clicking on the red bar where it says glossary then scrolling down to the link for Semester 2. You can pay attention in class and add definitions as we work on them during our lessons. You can pull definitions from the class reading selections as well. You have a lot of choices when it comes to completing the vocabulary proof pass. You may: 1. Put each word on a note card, with a word on one side and a definition on the back. Each definition should also come with an example. If you don t have note cards, feel free to pick up flashcard templates from me. You can cut them up and use them just like note cards. 2. Make a more traditional vocabulary list on notebook paper. Make sure that you include both definitions and examples. 3. Generate electronic flashcards. There are many great websites for this. Here are a couple of choices: and These websites let you either print cards (which can be brought on the day of the unit proof) or a finished set to someone. You can also show them to me on your phone the day of the proof. There are also a lot of great flashcard apps some of them are free! Just show me the work you have done in the app. 4. Pick up a vocabulary graphic organizer from me. There are always lots of copies at the front of the room. 5. Use some other kind of system that works for you just run it by me ahead of time. Here are your words for Unit One. Good luck! mixture heterogeneous mixture homogeneous mixture colloid solution solute solvent soluble chemical equation insoluble solubility pure substance element atom chemical symbol compound molecule chemical formula Semester 2 Foundations 2

3 Unit Two: Mixtures and Compounds Guided Notes Proof Pass If you choose the guided notes, they should be complete on the day of the test; this is one of your proof passes for Unit Two. Demonstrating knowledge on these guided notes will prepare you for the final unit proof, particularly the short answer questions. Each part of the guided notes shows which learning targets are related to that question. The guide can be filled out in a variety of ways. You can work on it during class, paying careful attention to the learning targets we work on and matching them to this study guide. You can use homework practice and class practice for help. You can access resources available through the class blog (blogs.bethel.k12.or.us/npetersen/). However you choose to work on the guided notes, you should work on them throughout the unit. K 2.2 What are the three main properties of mixtures? Describe them. K 2.3 Use the Venn Diagram below for comparing and contrasting heterogeneous and homogeneous mixtures. Semester 2 Foundations 3

4 K 2.4 Explain what a solution is and tell its properties. K 2.5 How are atoms and elements related? K 2.6 Write the symbol for each of these common elements: carbon, oxygen, hydrogen, potassium, nitrogen, potassium, and gold. K 2.7 How does a compound differ from an element? What are the particles of a compound? K 2.8 If you were looking at a picture of a model, how would you tell the difference between a molecule and an atom? For example, is this an atom or a molecule? How do you know? K 2.9 Does a chemical equation always have to be balanced? Why? Semester 2 Foundations 4

5 PA 2.2 Explain the following chart, then complete the mixture side of it to include heterogeneous and homogenous solutions as well as suspensions and colloids: PA 2.3 Give an example of a common colloid, solution, heterogeneous solution and a homogenous solution. PA 2.4 Describe how you would separate a mix of salt and pepper. What about a mixture of salt water and sand? PA 2.5 Classify each of the following as a pure substance or a mixture: blood, soda, mercury, water or pizza. Semester 2 Foundations 5

6 PA 2.5 Classify each mixture as a solution, suspension or a colloid: lemonade, mayonnaise, whipped cream, paint, soda, fog, butter, muddy water, salad dressing. REVIEW (MUST BE COMPLETED AS PART OF THE GUIDED NOTES) PA 1.1/PA 1.2 Write the formula for density and then solve the following problems. Make sure to include units: 1) A block of aluminum occupies a volume of 15.0 ml and weighs 40.5 g. What is its density? 2) Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml. The mercury used to fill the cylinder weighs g. From this information, calculate the density of mercury. Semester 2 Foundations 6

7 Unit Two: Mixtures and Compounds Test Prep Proof Pass This test prep should be complete on the day of the test; this is one of your proof passes for unit two. Demonstrating knowledge on the test prep will prepare you for the final unit proof. Each part of the test prep shows which learning targets are related to that section. The purpose of the study guide is to give you an idea about the types of questions that will be on the proof. Test prep can be completed in a variety of ways. You can work on it during class, paying careful attention to the learning targets we work on in class and matching them to the questions here. You can access resources available through the class blog (blogs.bethel.k12.or.us/npetersen/). However you choose to work on the test, you work on it throughout the unit. K 2.2, K 2.4, K 2.7, K 2.10 Answer the following multiple choice questions. 1. Which of these common substances is a homogeneous mixture? A. table salt B. pure water C. whole milk D. maple syrup 2. Which of these substances is a compound? A. carbon B. chlorine C. gold D. acetic acid 3. Which of these substances is an example of a solution? A. milk B. Brass C. mercury D. concrete Semester 2 Foundations 7

8 4. The four items below were part of a dinner. Each item is a mixture. Which of these mixtures is a suspension? A. A B. B C. C D. D 5. The diagram below shows a magnet near a pile of particles of iron and sulfur. The magnet attracts the iron, separating it from the mixture. Based on the diagram, which statement is true? A. The parts of a mixture keep their own properties. B. The elements in a compound keep their own properties. C. The properties of a mixture are different from the properties of its parts. D. The properties of a compound are different from the properties of its elements. Semester 2 Foundations 8

9 6. You know that one of these containers has a mixture in it and one does not. You can only shine a light through them to determine which one is which. What substance is most likely to be in container A? A. water B. gelatin C. apple juice D. mayonnaise 7. Sucrose is another name for table sugar. Sucrose is a compound made from the elements carbon, hydrogen, and oxygen. Which statement best describes the properties of sucrose? A. They are exactly like the properties of carbon. B. They are exactly like the properties of oxygen. C. They are exactly like the properties of hydrogen. D. They are different from the properties of the elements in sucrose. 8. Which of the following is a way in which elements and compounds are similar? A. Elements and compounds are both pure substances. B. Elements and compounds are both listed on the periodic table. C. Elements and compounds are both made up of different kinds of atoms. D. Elements and compounds can both be broken down by physical changes. Semester 2 Foundations 9

10 9. A water molecule is made up of one oxygen and two hydrogen atoms. Why is water considered a pure substance? A. Water can be broken down by physical means. B. Water can be combined with other substances by physical means. C. Each water molecule is identical. D. Water molecules are made up of different types of atoms. 10. What type of substance is always made up of a single type of atom? A. mixture B. element C. molecule D. compound 11. Which is an example of a colloid? A. butter B. homogenized milk C. salad dressing D. sugar water K 2.3 Classify each as Homogenous or Heterogeneous by checking the box. Mixture Heterogeneous Homogeneous Spaghetti sauce Pure air City air Chocolate chip ice cream Sugar Sugar water Black coffee Salad dressing Paint Iron Aluminum foil Beach sand K 2.4 Name three properties of a solution. K 2.5 Fill in the blank. Atoms are to elements and molecules are to? Semester 2 Foundations 10

11 K 2.7 and PA 2.1 Explain the relationships in this chart: K 2.8 Use the chart to answer these questions: What is the difference between a molecule of oxygen and an atom of oxygen? How are molecules represented differently than atoms? Semester 2 Foundations 11

12 PA 2.2 Tell about this picture using the words solvent, solute, and solution in your explanation. PA 2.2 Determine the percent composition by mass of a 100 g salt solution which contains 20 g salt. PA 2.3 To the right of the graph explain what happens to sugar and salt when dissolved in water as the temperature rises. Semester 2 Foundations 12

13 PA 2.5 Give two examples each of a solution, a suspension and a colloid. REVIEW (MUST BE COMPLETED AS PART OF THE TEST REVIEW) PA 1.1 and PA 1.2 A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper? Use the correct units in your answer. PA 1.7 Label the following phase change diagram: Semester 2 Foundations 13