matter and change. act opener keep the opener sheet with you for two weeks write the question and...
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![Page 1: Matter and Change. ACT Opener Keep the opener sheet with you for two weeks Write the question and answer it Which statement is always true for a](https://reader035.vdocuments.mx/reader035/viewer/2022062322/5697bfbd1a28abf838ca1daa/html5/thumbnails/1.jpg)
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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NotesMatter- 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 compounds1. Every sample of a given pure substance has
exactly the same characteristic properties.
a. Boiling pointb. Freezing pointc. Melting pointd. 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 dressing2. __ink 5. __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 dressing2. 1 ink 5. 1 coffee3. 1 soft drink 6. 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% alcohol4. 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% alcohol4. 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!!!