Name ______Date ______Period ______
Chemical Formulas, Equations, and Reactions Unit Plan
Rating Scale: 4 – Understand, 3 – Somewhat Understand, 2 – Unclear, 1 – Have No Idea
Rating / Prior Knowledge4 3 2 1 / 6.5D: Identify the formation of a new substance by using the evidence of a possible chemical change suchas production of a gas, change in temperature, production of a precipitate, or color change.
4 3 2 1 / 6.6A: Compare metals, nonmetals, and metalloids using physical properties such as luster, conductivity, ormalleability.
4 3 2 1 / 6.6C: Test the physical properties of minerals including hardness, color, luster, and streak.
4 3 2 1 / 7.6B: Distinguish between physical and chemical changes in matter in the digestive system.
8.5 DEF
4 3 2 1 / 8.5D I can use subscripts to determine the number of atoms of each type of element in a chemical formula / 4 3 2 1
4 3 2 1 / 8.5D I can use coefficients and subscripts to determine the number of atoms of each type of element and total atoms in a chemical formula / 4 3 2 1
Chemical Formula: / Example:
Molecule: / Example:
Subscript: / Example:
Coefficient: / Example:
Formaldehyde’s formulas is: CH2O
Write the NAME of each element and how many ATOMS each element has in this formula / Here is the formula for 4 molecules of propane:
4C3H8
Write the NAME of each element and how many ATOMS each element has in this formula
What is a chemical formula?
How is a subscript used in a chemical formula?
4 3 2 1 / 8.5E I can identify the evidence that a chemical reaction has taken place when reading a scenario or performing a laboratory investigation. / 4 3 2 1
4 3 2 1 / 8.5E I can use evidence to describe how new substances with different properties are formed during a chemical reaction / 4 3 2 1
Chemical Reaction: / Example:
Precipitate: / Example:
During a lab investigation Anthony mixed 3 chemicals together. One chemical was red and the other two were clear. He first noticed a new smell that was not there before. Then he noticed that the solution turned red. What chemical change took place? / When food goes bad what is ONE type of evidence that there has been a chemical reaction?
What evidence indicates that a chemical reaction has occurred?
4 3 2 1 / 8.5F I can explain WHY a chemical equation has to be balanced using the law of conservation of mass. / 4 3 2 1
4 3 2 1 / 8.5F I can count the number of atoms of each type of element involved in a chemical equation and then determine if the reaction is balanced or not. / 4 3 2 1
Chemical Equation: / Example:
Reactants: / Example:
Products: / Example:
Yield: / Example:
Law of Conservation of Mass: / Example:
Is the equations Balanced Yes/No
If No, explain what is wrong
Hg + Br2→ Hg2Br2 / Is the equations Balanced Yes/No
2Hg + Br2→ Hg2Br2
What is a chemical equation? What are the parts of a chemical equation, including coefficients?
How does a chemical equation demonstrate the law of conservation of mass?
ATOMS UNIT : I can identify the location, charge and relative mass of subatomic particles.
Fill in the blanks
Proton / Neutron / Electron
Location
Mass
Charge
/ PTE UNIT : When given a periodic table, a student can draw a model of an atom of an element (use period 1-3 only) using the correct number of energy levels and valence electrons
Draw a Bohr model for an atom of Fluorine.