whats a matter?. what is matter? matter: anything that takes up space and has mass atom: basic unit...
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What’s a Matter?
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What is Matter?
Matter: Anything that takes up space and has mass Atom: Basic unit of matter Chemistry: The study of matter and all the changes it
undergoes. Element: Kind of atom (oxygen, hydrogen etc…) Molecule: 2 or more atoms Compound: 2 or more elements Is O2 a compound or molecule? Is H2O a compound or element?
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What Changes Does Matter Undergo?
Physical: The substance is still the same
Chemical: A new substance is formed
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What is a solid, liquid or gas?
Help Marvin the Martian understand what a solid, liquid and gas are!
Draw what solids, liquids, gases look like
What would happen if we increase the temperature?
What would happen if we decreased the temperature?
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What does an atom look like?
Atoms contain a nucleus with protons (+) and neutrons (no charge) and have electrons (-) flying around
Neils Bohr: Proposed the planetary model after studying a hydrogen atom in 1915.
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Electron Cloud Theory
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How do compounds form?
Ionic Bond: An electron is transferred from one element to another (metal to nonmetal)
Covalent Bond: Electrons are shared (nonmetal to nonmetal)
Metallic Bond: Sea of electrons (Metal to Metal)
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CLASSIFYING MATTER
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How do we use the periodic table of elements?
Group IA: Alkali Metals Group VIIIA (O): Noble Gases
Group IIA: Alkaline Earth Metals Other Nonmetals
Group B: Transition Metals Metalloids
Group VIIA: Halogens Other Metals
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How do we use the periodic table?
(Number of protons/electrons)
( protons + neutrons)
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Which element has the atomic # 10?
Which element has a mass of 4 amu?
Which element is in period 3 and is a Noble Gas?
64
29 Cu +2
How many protons?How many protons?How many electrons?How many electrons?How many neutrons?How many neutrons?
Who Am I?
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What are acids and bases?
ACIDS BASES
TASTE SOUR BITTER
FEEL STINGS SLIPPERY
REACTIONS YES / METAL NO / METALS
CONDUCTS ELECTROLYTE ELECTROLYTE
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HOW DO WE MEASURE ACIDS AND BASES?
INDICATORSA SUBSTANCE THAT TURNS ONE
COLOR IN AN ACIDIC SOLUTION AND ANOTHER COLOR IN A BASIC
SOLUTIONSOME INDICATORS ARE:
LITMUS: DYE THAT COMES FROM A LICHEN
PHENOLPHTHALEIN: INDICATES ONLY BASES
UNIVERSAL INDICATOR: ACID, NEUTRALS, BASES CABBAGE JUICE: ACIDS, NEUTRAL, BASE