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# Big Science 4 Props & Changes 37 Analyzing Balanced Chemical Equations (amu)

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### PRODUCT DESCRIPTION

This is an excerpt from Amazon's popular line of Bossy Brocci Math and Big Science workbooks! [it's pronounced like "Brawsee"]

Printing should be done in Landscape and DOUBLE-SIDED, with the flip being along the 'SHORT' side.

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Note: unlike lesson #38, this Lesson uses number of atoms and molecules and Atomic Mass Units (a.m.u.) for mass

Students will:

1) Analyze 6 Balanced Chemical Equations on 6 different Data Tables
2) Calculate, Determine, Draw & Write-in:
Reaction Arrows
Unique shapes around unique chemical reactant & product species
'Same' or 'Different' for Left-side & Right-side shapes
The Number of each reactant & product chemical specie (molecule or atom coefficient)
'Same' or 'Different' for those Left-side & Right-side Coefficients (number of molecules or atoms)
The Total number of reactant and product "players" or things (total number of atoms or molecules)
'Same' or 'Different' for those Left-side & Right-side Total players/things (atoms or molecules)
The Number of Different Reactant and Product Chemical species (different types of shapes they drew around those chemicals)
'Same' or 'Different' for those Left-side & Right-side quantities of different chemical species
The Number of each Element's Atoms (via Coefficient x Subscript)
'Same' or 'Different' for those Left-side & Right-side quantities of Element atoms
The Total number of reactant Atoms & product Atoms
'Same' or 'Different' for those Left-side & Right-side Atom totals
and
The Total reactant Mass (in a.m.u.) & product Mass (in a.m.u.)
'Same' or 'Different' for those Left-side & Right-side Mass totals
3) Perform a total of 206 tasks in 6 Data Tables
4) Be compelled to present their work in a neat & orderly format
5) Discover 2 Universal Truths about The Law of Conservation of Matter and Chemical Reactions/Chemical Equations:
A) That 1 thing ALWAYS CHANGES: Chemical species or identity and
B) That 4 things ALWAYS STAY THE SAME: Elements, Number of Element Atoms, Total Atoms and Total Mass.
6) Be trained to identify and enumerate the things that Chemical Reactions and Balanced Chemical Equations Change and Conserve - methodically & systematically

Note: this Lesson is a thorough examination of just what The Law of Conservation of Matter means -and DOESN'T mean-, vis a vis Chemical Reactions & Chemical Equations. Because of the easy mantra of 'What goes in, must come out', many students lose sight of the fact that Chemical Reactions change chemicals (just not elements), and that only the atoms and mass that go in, must come out - NOT the number of Reactants equals the number of Products etc.

Thus, after this lesson, your students will discover 2 Universal Truths about The Law of Conservation of Matter and Chemical Reactions/Chemical Equations:
A) That 1 thing ALWAYS CHANGES: Chemical species or identity and
B) That 4 things ALWAYS STAY THE SAME: Elements, Number of Element Atoms, Total Atoms and Total Mass.

Printing should be done in Landscape and double-sided, with the flip being along the 'short' side

Science Chemistry Physical Properties Chemical Properties Physical Changes Chemical Changes Nuclear Changes Chemical Reactions Elementary Chemical Reactions Synthesis Decomposition Single Displacement Double Displacement Combustion Endothermic Reactions Exothermic Reactions Precipitate Chemical Equations Reactants Products Coefficients Subscripts Stoichiometry Balancing Chemical Equations The Law of Conservation of Matter The Law of Conservation of Mass Reaction Rates Reaction Kinetics Activation Energy Reaction Rate Speed Factors Temperature Catalyst Pressure Surface Area Concentration
Total Pages
14
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Teaching Duration
N/A

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