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Transcript
Chemistry
Terms:
Chemical Symbols
Chemical Formulas
Subscripts
Yield Arrow
Used to represent elements
Used to represent compounds
Numbers that sit after and below the symbol.
Represent number of atoms of that particular element.
Numbers used to show how many molecules and/or
compounds there are in a substance
Are used to show reactions
 All substances needed for the reaction to take
place
 All substances are on the left hand side
 Separated by a + sign
 Substances made from reaction
 Indicates reaction only takes place 1 way
Separates the products from the reactions
Elements and Compounds
C
H
O
N
P
S
Cl
Na
Fe
O2
CO2
ATP
NaCl
H2O
C6H12O6
Carbon
Hydrogen
Oxygen
Nitrogen
Phosphorous
Sulfur
Chlorine
Sodium
Iron
Oxygen Molecule
Carbon Dioxide
Adenosine Triphosphate
Sodium Chloride- table salt
Water
Glucose
Coefficients
Chemical Equations
Reactants
Products
Macromolecule
Macromolecule
Carbohydrate
Lipid
Protein
Nucleic Acid
Atom
Element
Compound
Organic compounds that make up all living things
Energy-rich organic compound made of the elements
carbon, hydrogen, and oxygen
Energy rich organic compound such as fat
Large organic molecule made of carbon hydrogen
nitrogen and sulfur
Organic molecule made of carbon oxygen hydrogen
nitrogen and phosphorus
Building block of matter, most basic form of matterone atom of element
Most basic [art of matter- cannot be simplified further
2 or more elements chemically combined
Content:
Chemical Symbols
1. First letter always capitalized
2. If two letters in symbol second one is always lowercased
Chemical Formulas
1. Subscripts
2. Coefficients
Chemical Equations
1. Reactants
2. Products
3. Yield Arrow
Element and compound symbols
Macromolecules
Concepts/Skills:
 Know how to write chemical symbols
 Know how to write chemical formulas
 Know how to read and write chemical equations
 Know the basic elements and compounds
 Know macromolecules
Diagrams
Sample questions:
1. What are the rules for writing chemical formulas
2. What are the two parts of a chemical equation
2FeH3
3. How many elements are in this compounds
4. How many atoms of H are there
5. What is the 2 called in this equation
6. Why must the second letter of an element’s symbol be lowercase?
7. What does the arrow mean in the chemical equation
8. What elements are in a lipid?
9. What is the function of nucleic acid?
10. What are 3 examples of lipids?
11. Where are proteins found