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List four indications that a chemical reaction has occurred. 1.Heat/Light 2.Color Change 3.Gas produced 4.Precipitate
_______ does the dissolving in a solution. Solvent
Which piece of equipment do you use for obtaining an accurate measurement of volume? Graduated cylinder
H 2 + O 2 H 2 O List the reactant(s) H 2, O 2
Identify: Florence Flask
List an example of a homogeneous mixture. Homogeneous = sugar water, salt water, air
____ is a form of energy Heat
How can you tell that an endothermic process is taking place? Feels cold to the touch
What is the hottest part of a Bunsen burner flame? Top of inner cone
What should you fill the wash bottles with? Distilled water ONLY
_______ is a pure substance that is made from atoms of two or more elements that are chemically combined Compound
What is a chemical change? Chemical change = results in a new substance with new properties
Identify: Evaporating dish
H 2 + O 2 H 2 O List the product(s) H 2 O
What are some examples of improper lab attire? Flip-flops Long hair not pulled back Baggy sleeves Long jewelry Shorts No goggles
Identify: Crucible & Cover
What are 2 types of pure substances? Elements & Compounds
What is the difference between a proper and improper Bunsen burner flame? Proper is blue w/ 2 cones and an improper yellows at the top and an inner cone is not present.
Identify: Mortar & Pestle
What is a physical change? Physical change = does not change the identity of matter
______ is the study of the composition, structure and properties of matter Chemistry
You just made sugar water. What is the solute? sugar
What type of change would crumpling up a piece of paper be considered? Physical change
What piece of equipment would you use as a cover to the evaporating dish? Watch glass
What type of change would burning a piece of paper be considered? Chemical change
_______ is a pure substance made of only one kind of atom Element
How can you tell that an exothermic process is taking place? Feels hot to the touch
Define “matter”. Anything that has mass and takes up space
___________________ states that matter is neither created or destroyed by ordinary chemical or physical changes The Law Of Conservation Of Matter
Chemical changes are always accompanied by what type of change? Energy change!
______ is a mixture that is NOT uniform in composition throughout Heterogeneous mixture
________ is a process that releases heat Exothermic
________ gets dissolved in a solution Solute
What is the difference between a mixture and a compound? Mixture = pure substances are physically combined Compound = pure substances are chemically combined
Suppose put an ice cube on your hand. In what direction does heat travel? Be specific From your hand to the ice cube
_________ is a solid that separates from a solution Precipitate
A homogeneous mixture can also be called a ______________? Solution
What does “aqueous” (aq) mean? A compound is dissolved in water
__________ is a mixture that is uniform in composition throughout Homogeneous mixture
List an example of a heterogeneous mixture. Heterogeneous = chicken soup, oil and water, sand, soil
What is energy? The ability to do work or cause change
________ is a process that absorbs heat Endothermic
How is matter classified?...Draw the flow chart
Chapter 2 Note-Packet Introduction to Matter. Section 1.
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Matter and Energy Chapter Vocab Matter – anything that has mass and takes up space Mass – measure of how much matter an object has.
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Mixtures and Solutions. What is Matter? Anything that has mass and takes up space or volume.
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ANYTHING WITH MASS AND VOLUME. Matter Pure Substances Mixtures Elements Compounds Homogeneous Heterogeneous Draw this chart!, leave space to define the.
Provide the following information on the slip provided Name …the one you want to be called. Code name…a clean one…I will use this to post your grades.
Matter: Properties & Changes Chapter 2 notes. (2.1) Physical Properties of Matter can be observed or measured without changing the composition of the.
What is Matter? Physical Science Chapter 2 Matter Anything that has mass and takes up space All the materials you can hold or touch Examples –You –This.
Physical and Chemical Changes Pure Substances Mixtures States of Matter.
Lab 5.2 Notes Mixtures and Solutions. MATTER Can it be separated? Mixtures Pure Substances Is composition uniform? Can it be decomposed by ordinary chemical.
Classifying Materials Unit #2. Matter Def: anything that takes up space and has mass.
Matter & Change Chapter 2. A. Describing Matter Understanding matter begins with observation Matter is anything that has mass and takes up space Chemistry.
What is Matter? Properties of Matter. Matter is… everything that has mass and volume made up of atoms (tiny particles)
Warm-Up Please sit down quickly and quietly. Please copy down the schedule in your Raven Book. Next, answer this Warm-Up Question on your yellow sheet:
What is Matter?. CHEMISTRY- the scientific study of the composition, structure, and properties of matter and the changes that matter undergoes MATTER-
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