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Compounds, Mixtures, & Solutions. WARM - UP. Update your Table of Contents Write your homework – leave it to be stamped Get your homework out to be checked – we will go over it! Get ready for a Quick Chemistry Recap!. Ion “Cheater” Chart Double Check. Equation Challenge-. - PowerPoint PPT Presentation
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Compounds, Mixtures, &
Solutions
Update your Table of Contents Write your homework – leave it to be
stamped Get your homework out to be checked –
we will go over it! Get ready for a Quick Chemistry Recap!
WARM - UP
Date Session#
Activity Page#
9/26-9/27
12 Compounds, Mixtures & Solutions Reading
19
Quick Comprehension Stations 20
Group/Family Name
Alkali Metals
Alkaline Metals
Boron Family
Carbon Family
Nitrogen Family
Oxygen Family
Halogens Noble Gases
Group/Family Number 1 2 3 4 5 6 7 8
# of Valence Electrons 1 2 3 4 5 6 7 8
# of empty spaces for e- 7 6 5 4 3 2 1 0
Giver or Stealer of e- G G G BOTH S S S N/A
Type of ion formed
CATION CATION CATION BOTH ANION ANION ANION N/A
Charge of ion formed +1 +2 +3 +4/-4 -3 -2 -1 N/A
Group # they bond with 7 6 5 4 3 2 1 N/A
Ion “Cheater” Chart Double Check
Equation Challenge-
H2O(liquid) H2O(gas)Same molecule on each side of the equation – structure or identity stayed the sameOne side has liquid water, the other side has gaseous water – phase changeNo bonds were broken – PHYSICAL CHANGE
CH4 + 2O2 CO2 + 2H2OSame elements on each side of the equation – BUT structure or identity has changedDifferent compounds have formed on each side of the equationThere have been chemical bonds broken, atoms rearranged, & new bonds created – CHEMICAL CHANGE
Notes Away – Whiteboards Out
Number 1, 2, 3
Everything is _________.
All MATTER is made of _______.
An ____________ is a substance made up of only 1 type of ATOM.
Basics -1 min
MATTER
ATOMS
ELEMENT
All ELEMENTS are displayed on the ____________________…simplest substances; ingredients for everything else on Earth
Each ELEMENT belongs to a KINGDOM, either the ____________________________ AND A ___________ with similar characteristics
Periodic Table – 2 min
PERIODIC TABLE
METALS, METALLOIDS, OR NONMETALSGROUP
Each element or group of elements has its very own set of physical and chemical properties (characteristics) What are all 8 physical properties? What are all 4 chemical properties?
These properties can lead to physical and chemical changes…ONE of those changes is chemical BONDING!
Physical & Chemical – 3 min/1min
Ionic Bonds – 2 facts & 1 example◦Metal & Nonmetal (2 ions)◦Transfer electrons◦Examples: NaCl (salt)
Covalent Bonds – 2 facts & 1 example◦2 Nonmetals◦Share electrons◦Example: H2O (water)
Bonding Basics – 2 min/1min
MOST ELEMENTS WANT TO COMBINE
NATURALLY, BUT WHAT FORMS WHEN
THEY DO?
Compound Mixture Solution
What’s the difference?
When 2 or more substances combine, 3
things can happen:
Read the “Compounds, Mixtures, and Solutions article, and use it to answer the questions.
You may read & complete the questions with your group.
Working effectively as a GROUP = bonus tokens
Compounds, Mixtures, Solutions
Visit each station and describe what you see using as many vocabulary terms from the article as you can…I want scientific explanations – (that means use vocabulary!!)
Each station has multiple explanations…token time!!
Quick Comprehension Stations
Part 1: Have your parent log on to Power School and check your grade. THEN, have them sign in your agenda that they have checked your grade.
Part 2: Elements, Compounds & Mixtures Identification Worksheet
Homework:
Update your Table of Contents Write your homework – leave it to be
stamped Get your homework out to be checked –
tape the worksheet into page 22! On page 21 divide your page into 4
squares – label them Element, Compound, Mixture, Solution
WARM - UP
Date Session#
Activity Page#
9/30-10/1
13 Element, Compound, Mixture, Solution 4-Square
21
Elements, Compounds & Mixtures Identification Worksheet (Homework from previous class)
22
Study Guide Part 1 23
Element Compound
4-Square (page 21)
Mixture Solution
MUST be on the Periodic Table OF ELEMENTS
Pure substances made of only one type of atom
Combine to form all other types of matter
Examples: Silver Calcium Oxygen
Elements:
What Does it Look Like Chemically? Single atoms of
ONE pure element
Molecules of ONE pure element
Two or more elements combine during a chemical reaction
Must be combined in specific ratios Chemical Change/Reaction
Examples: Water Salt Sugar
Compounds:
2 or more ELEMENTS that are CHEMICALLY bonded to one another
What Does it Look Like Chemically?
What is evidence
that a chemical
reaction is happening
again?
Compounds are formed or separated through chemical reactions…
Combines 2 or more substances without producing a chemical reaction
NOT the same throughout - heterogeneous
Basic mixtures can be separated easily
Examples: Soil Fruit salad
Physical Change
Mixture
2 or more SUBSTANCES MIXED together, but NOT chemically bonded.
What Does it Look Like Chemically?
A type of HETEROGENEOUS MIXTURE – different throughout
Particles will not dissolve, (insoluble) or are suspended
Examples: Italian dressing Snow globe
Suspension:
A type of HOMOGENOUS MIXTURE - same throughout
Can be solids, liquids or gases Solute- substance being dissolved Solvent- substance doing the dissolving
Examples: Salt water Lemonade
Physical Change
Solution:
Salt = Solute
Water= Solvent
Salt Water= Solutio
n
It is also a mixture of 2 or more SUBSTANCES, but the particles will be evenly distributed throughout (homogenous)
What Does it Look Like Chemically?
A type of HOMOGENEOUS SOLUTION Have an “in between” texture
Examples: Jell-O Pudding
Colloid:
Take a look at the homework…make corrections if they are wrong!
I will show you a picture and your team will have 15 seconds to figure out what it is and write it down on your white board…YOU GET ONE CHANCE!
Your answer will be one of the following: Element Compound Mixture Solution
Your team will get a token in your cup for each picture you get correct!
Goal: For your team to collect as many tokens in your cup as possible to win the candy!
In it to WIN it!
Cool Whip
Element, Compound, Mixture or Solution?
Gold
Element, Compound, Mixture or Solution?
Methane – CH4
Element, Compound, Mixture or Solution?
Lemonade
Element, Compound, Mixture, or Solution?
Salt
Element, Compound, Mixture, or Solution?
Copper
Element, Compound, Mixture, or Solution?
Soil
Element, Compound, Mixture, or Solution?
Water
Element, Compound, Mixture, or Solution?
Silver
Element, Compound, Mixture, or Solution?
Sugar
=
Element, Compound, Mixture or Solution?
Air
Element, Compound, Mixture, or Solution?
Salad
Element, Compound, Mixture, or Solution?
Gasoline
Element, Compound, Mixture, or Solution?
Neon Gas in the Sign
Element, Compound, Mixture, or Solution?
Pebbles
Element, Compound, Mixture or Solution?
Kool-Aid
Element, Compound, Mixture, or Solution?
Hydrogen Peroxide
Element, Compound, Mixture, or Solution?
Oxygen
Element, Compound, Mixture, or Solution?
Lucky Charms Cereal
Element, Compound, Mixture, or Solution?
Diamond
THE LAST CHALLENGE!
Make sure you are on the Double Reaction Lab Quiz side of the paper!
Double Reaction Lab Quiz + Sum It Up = FORMAL GRADE
Double Reaction Lab Quiz
Group Roles Leader: Reads the directions, keeps group
on task and following directionsMaterials/Clean Up: collects, returns,
cleans and disposes of materialsData Discussion Leader: Ensures there is a
conversation about each question to share information.
Quality Management: Ensures every student has detailed quality answers written in complete sentences using scientific language & turns their lab guide in with their name on it!
Quick one question assessment to make sure you understand the difference between an element, compound, mixture and solution
MAKE SURE YOUR “QM” CHECKS FOR NAMES ON EACH SHEET AND TURNS THEM IN TO THE BASKET!
Sum It Up!
Take a Science Textbook off the shelf
Write your name in it While you work on your Study Guide Part 1, I will come around to record the number you have taken
THEN…TAKE IT HOME AND LEAVE IT THERE!
Science Textbooks
Parent acknowledgement of your grade!
Chemistry Test 2 coming up soon!
Finish Study Guide Part 1
HOMEWORK:
Update your Table of Contents Write your homework – leave it to be
stamped Get your homework out to be checked – it
should be taped into page 23! Look at the last question on the
homework & discuss your answer with your group.
WARM - UP
Date Session#
Activity Page#
10/2-10/3
14 BIG QUESTION Quick Writes 1- 3 24
Unknown Substances Chart & Quick Write 4
25
Chemistry Test 2 date has changed!!!
Was on Friday 10/4Now is on Tuesday 10/8
Important Announcement
In your paper bag there are 4 similar objects.
Choose 1 person to stick their hand in the bag WITHOUT looking…they will have to pull out what I ask for!
How did you know you had the right object?
“Paper Bag Properties”
If you have one or more unidentified substances, what could you do to start identifying them?
ANSWER:By their physical & chemical properties!
BIG QUESTION:
Quick Write 1: Tell Me EverythingYou Can About this Substance!
DID YOU HAVE…◦Compound◦Two elements bonded◦Carbon & Hydrogen◦Flammable◦Covalent bond◦2 nonmetals◦Full valence shell-Hydrogen 1 valence,
Carbon 4 valence◦WHAT ELSE?
Quick Write 1: Tell Me EverythingYou Can About this Substance!
Methane – CH4
Quick Write 2: Tell Me Everything You Can About this Substance!
DID YOU HAVE…◦Shiny◦Metallic◦Flammable◦Gives off light◦Silver/gray◦Malleable◦Looks sharp◦Temperature change◦WHAT ELSE?
Quick Write 2: Tell Me Everything You Can About this Substance!
Magnesium
I’m thirsty and need water to survive, but have 3 beakers of clear liquid…how can I start identifying what they are so I can have something to drink?
Discuss with your group & record what your options are/steps you would take to identify the water!
Quick Write 3: “Science Survivor”
You will get a chart with 10 UNKNOWN substances.
BUT, you also have 2 copies of a list of KNOWN substances and some of their properties.
Use the list of KNOWN substances to figure out what your UNKNOWN substances are.
Unknown Substances Practice Chart
There is a deposit of silver mixed with sulfur. Silver has a density of 10.5 g/cm3 and a melting point of 962 degrees Celsius. Sulfur has a density of 2.07 g/cm3 and a melting point of 115 degrees Celsius. How can these physical properties be used to separate silver and sulfur?
Heat the mixture until the sulfur melts. The solid silver will sink to the bottom because it is denser and can be removed leaving the liquid sulfur behind.
Quick Write 4: The Challenge
Get Ready for Vocab Bingo!Physical PropertyPhysical ChangeDensitySolubilityMalleabilityMelting PointBoiling PointMagnetismConductivitySpecific HeatChemical PropertyChemical Change
PrecipitateReactivity with OxygenFlammabilityToxicityChemical ReactivityIonic BondCovalent BondMoleculeOctet RuleCompoundMixtureSolution
SolventSoluteSuspensionColloidDiluteConcentratedSaturatedUnsaturatedHeterogeneousHomogeneousValence Electrons
Finish Study Guide Part 2 & start to STUDY FOR YOUR TEST!!!!
Homework
Update your Table of Contents Write your homework – leave it to be
stamped Get your homework out to be checked – I
want to go over them and answer any questions you might have!
WARM - UP
Date Session#
Activity Page#
10/4 15 Adopt-An-Element Directions/Rubric (A-Day ONLY)
26
Let’s go over the answers to Parts 1, 2 & 3
Study Guide Part 1