Happy Atoms Worksheet Page 29
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33Chemical Reaction Types Lesson Guide
Big Idea
There are different patterns in chemical reaction types. One key feature of all chemical
reactions is that atoms in molecules rearrange to form the products, thus providing the
basis for balancing reactions.
Learning Objectives
Students will be able to:
1. Physically model the products and reactants of a chemical reaction using the Happy
Atoms set, and observe how bonds break and reform to make new compounds.
2. Build a compound if they know its chemical formula, and use it to build the products of
a reaction using the same atoms present in the reactants
3. Demonstrate an understanding of balancing chemical equations using physical models
of the products and reactants.
Standards Addressed
1. Use the periodic table as a model to predict the relative properties of elements based on
the patterns of electrons in the outermost energy level of atoms. (HS-PS1-1)
2. Construct and revise an explanation for the outcome of a simple chemical reaction
based on the outermost electron states of atoms, trends in the periodic table, and
knowledge of the patterns of chemical properties. (HS-PS1-2)
3. Use mathematical explanations to support the claim that atoms, and therefore mass, are
conserved during a chemical reaction. (HS-PS1-7)
4. The fact that atoms are conserved, together with knowledge of the chemical properties
of the elements involved, can be used to describe and predict chemical reactions.
(PS1.B.3)
Vocabulary, Content and Misconceptions
Reactant
Product
Balanced Equation
Visualizing the number of atoms present in the reactants and products of a reaction will
help students gain a conceptual understanding of balancing equations. However, some
students may only make one molecule of each product and reactant. Be sure to remind
students that number of atoms on both sides of the equation must be equal, therefore they
might need to make more than one of each molecule.
Remind students that once you write the chemical formulas to not touch the subscripts in
the chemical formulas when balancing a chemical equation – use coefficients only to
balance the chemical equation.
Note that at the combustion reaction station, groups may construct a model of the reaction
using different starting hydrocarbon compounds. Use this as a teaching point to explain the
unique trend sin combustion reactions
1
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education