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Published byHarold Austin Modified over 9 years ago
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Matter and Change
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ACT Opener Keep the opener sheet with you for two weeks Write the question and answer it Which statement is always true for a compound? A. It is homogeneous B. It contains only 1 element C. Its chemical composition varies D. It decomposes by physical means
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Review Growth Mindset Keep trying until you get it Then keep making it better Test your mindset Which mindset are you? Which mindset do you want?
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Unit 1: Matter and Change “I Can” statements Standards for the entire unit That is what you will be tested on Keep in your notebook
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Unit Pre-Test Answer the Pre-Test questions Do your best Similar to Unit test
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Opener Make sure to copy question and answers What is the name given to anything that takes up space and has mass A. Compound B. Matter C. Mixture D. Substance
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Review Standards and “I can’s” Pre-Test
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Notes (keep in binder) Chemistry- the study of the composition, structure, and properties of matter, the processes that matter undergoes, and the energy changes that accompany these processes Broken into 6 types
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Notes Organic chemistry- the study of carbon-containing compounds Inorganic chemistry- the study of non-organic substances Physical chemistry- the study of the properties and changes of matter and their relation to energy Analytical chemistry- the identification of the components and composition of materials Biochemistry- the study of substances and processes occurring in living things Theoretical chemistry- the use of mathematics and computers to understand principles behind observed chemical behavior
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Notes Chemical- any substance that has a definite composition Not just the bad stuff Basic research- carried out for the sake of increasing knowledge Discovery by accident Applied research- carried out to solve a problem Discovery for profit
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Notes Classes of Matter
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Notes Matter- anything that takes up space and has mass Mass- NOT, NOT, I REPEAT NOT the same as weight!!! amount of matter in an object
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Pure Substances (elements and compounds 1. Every sample of a given pure substance has exactly the same characteristic properties. a. Boiling point b. Freezing point c. Melting point d. Density Ex: water always has a boiling point of 100 C, melting point of 0 C, freezing point of 0 C and a density of l.00 g/ml. Other pure substances have their own individual characteristics (bp, mp, fp, density) 2. Every sample of a given pure substance has exactly the same composition.
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2 kinds of mixtures Mixture – not the same as a compound. Usually composed of several substances
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Opener Copy down the question and the answer
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Review What is matter? What are the two MAIN classifications of matter? What are the two pure substances? What are the two types of mixtures? Explain them
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1.homogeneous mixtures – also called solutions and have the SAME composition throughout. Ex: milk, salt water
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a. solute – the substance that gets dissolved. (What you have the least of) Example: salt b. solvent – the substance that does the dissolving. (What you have the most of.) Example: water
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How Solutions are Made…
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2.heterogeneous mixtures – the composition is NOT THE SAME throughout; oil and vinegar, blue cheese salad dressing, etc.
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Learning Check Identify if the following are 1) Homogeneous or 2) Heterogenous 1.__air 4. __ salad dressing 2.__ink5. __coffee (black) 3.__ soft drink 6. __Chicken noodle soup
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Learning Check Identify if the following are 1) Homogeneous or 2) Heterogenous 1. 1 perfect, pure air 4. 2 salad dressing 2. 1 ink5. 1 coffee 3. 1 soft drink6. 2 Chicken noodle soup
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Learning Check Circle the solute and underline the solvent 1.50 g of water and 5 g NaCl 2.2. 20 g copper and 50 g zinc 3. 30%water and 70% alcohol 4. 18.0 L of nitrogen & 12.0 L of oxygen
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Circle the solute and underline the solvent 1. 50 g of water and 5 g NaCl 2. 20 g copper and 50 g zinc 3. 30%water and 70% alcohol 4. 18.0 L of nitrogen & 12.0 L of oxygen
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Practice Activity Card Sort In groups of 2, sort the card cutouts you have into two columns Column A should start with cards 1 and 2 Column B should start with cards 3 and 4 Place remaining cards into the correct column GalleryWalk One stays to explain, one moves Can you group them different ways?
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Homework Worksheet Answer all parts of the worksheet On the back… Growth Mindset Create 20 other examples of material to be classified Both are due TOMORROW!!!
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