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Structure and Properties of Matter

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Presentation on theme: "Structure and Properties of Matter"— Presentation transcript:


2 Structure and Properties of Matter
Georgia High School Graduation Test: Science Review

3 What is an atom? the smallest particle of an ________ that has the ___________ of that element element = a substance that cannot be ____________ by ordinary chemical means to a smaller substance building block of matter Atoms are made of: ___________ (__) ___________ (__________) Most of the mass is concentrated in the _______ (location of ________ & ___________)

4 Atomic Structure Nucleus Electron Cloud ___________________________
where most of the _____ of the atom is concentrated __________________ Electron Cloud the space ____________________ in which electrons move rapidly _________________ divided into ___________________ ____________________________________________________

5 Atomic Structure atomic number = number of _________
Silver has ____ protons atomic mass = number of _______ + ________ Silver has ____ neutrons valence electrons = electrons in the ___________________

6 Atomic Structure Looking at the periodic table, answer the following questions: What element does this atom represent? How many valence electrons does this atom have? How many neutrons does this element have according to the periodic table?

7 Isotopes atoms of the same element having different numbers of ____________ identified with different _____________ mass number on the periodic table _________ the mass of all known isotopes isotopes have the same ____________ _________________

8 Solutions solution = _________________ of two or more substances that are evenly distributed examples: Coca-Cola, air, sea water, Kool-aid made of solute and solvent solute = ____________________________ example: _______________________________ solvent = ___________________________ example: ____________________________________


10 Phase Changes of Water

11 Types of Chemical Reactions
Combination/Synthesis Reactions Two or more substances ________ to form a single substance. A + B  AB CaO + H2O  Ca(OH)2 Yield Sign Reactants Product

12 Types of Chemical Reactions
Decomposition Reactions A single compound is ______________ into two or more products. AB  A + B CaCO3  CaO + CO2 Yield Sign Products Reactant

13 Types of Chemical Reactions
Single Replacement Reaction One element ____________ a second element in a compound. A + BC  AC + B Mg + Zn(NO3)2  Mg(NO3)2 + Zn

14 Types of Chemical Reactions
Double Replacement Reactions Two compounds swap what they are bonded with. AB + CD  AD + CB K2CO3 + BaCl2  2KCl + BaCO3

15 Balanced Chemical Equations
Balanced chemical equations follow the law of________________________. Law of Conservation of Matter/Mass: matter/mass can not be -_______________________, - _______________ The amount of matter after a change must be the __________________of matter that was present before the change.

16 Balanced Chemical Equations
Fe + O2  Fe2O3 Balanced? Yes ___ No ___ P + O2  P4O10 Balanced? Yes ___ No ___ Reactants Products Fe O Reactants Products P O

17 Balanced Chemical Equations
Zn + 2HCl  ZnCl2 + H2 Balanced? Yes ___ No ___ 2Na + 2H2O  2NaOH + H2 Balanced? Yes ___ No ___ Reactants Products Zn H Cl Reactants Products Na H O

18 Balanced Chemical Equations
Ca + Mg(OH)2  Mg + Ca(OH)2 Balanced? Yes ___ No ___ Reactants Products Ca Mg O H

19 pH Scale The pH scale measures how ________ or _____ a substance is.
The pH scale ranges from___________. A pH of ___ is ___________. A pH _____ than _____________. A pH _________ than ____________.

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