Unit 5: reactions
Big Idea: Reactions quantitatively describe the changing interactions between atoms.
NOTE - there are three parts to this unit
Part 1:
Chemistry: Atoms First (OpenStax) (Chapter 7, sections 1 and 2)
Homework part 1: here
Sequence:
Vocabulary part 1:
Part 2:
Chemistry: Atoms First (OpenStax) (Chapter 2, section 4; Chapter 6, sections 1 and 2)
Homework part 2: here
Sequence
Vocabulary part 2:
Part 3:
Chemistry: Atoms First (OpenStax) (Chapter 7, sections 3,4,5)
Homework part 3: here
Vocabulary part 3:
Videos:
Sequence
NOTE - there are three parts to this unit
Part 1:
- Be able to write and balance chemical equations
- Be able to identify five general types of reactions
- Be able to write molecular, complete and net ionic equations
- Be able to predict the formation of a precipitate
Chemistry: Atoms First (OpenStax) (Chapter 7, sections 1 and 2)
Homework part 1: here
Sequence:
- Write and balance reactions
- Group activity to classify reactions - here
- Practice balancing and classifying reactions - here
- Precipitation lab - student version here - data sheet here
Vocabulary part 1:
- Chemical equation
- Catalyst
- Coefficient
- Balanced equation
- Synthesis (Combination) reaction
- Decomposition reaction
- Single- replacement reaction
- Activity series
- Double-replacement reaction
- Combustion reaction
- Spectator ion
- Complete ionic equation
- Net ionic equation
Part 2:
- Be able to use the mole to convert mass to numbers
- Be able to use Avogadro’s number to convert moles into numbers of items
- Be able to convert volume of a gas at STP to moles and vice-versa
- Be able to determine the percent composition of a compound
- Be able to determine the empirical formula of a compound
- Be able to distinguish between empirical and molecular formulas
Chemistry: Atoms First (OpenStax) (Chapter 2, section 4; Chapter 6, sections 1 and 2)
Homework part 2: here
Sequence
- Mole Intro (slides below)
- Molar mass - practice here
- Mole conversions - practice here more practice here
- Moles and formulas - activity here
- Empirical formulas - Airplane activity here
- Hydrates - practice here
- Lab - formula of a hydrate - here
Vocabulary part 2:
- Mole
- Avogadro’s number
- Representative particle
- Molar mass
- Avogadro’s hypothesis
- STP
- Molar volume
- Percent composition
- Empirical formula
Part 3:
- Be able to describe conserved quantities in chemical reactions
- Be able to use mole ratios to solve stoichiometric problems
- Be able to identify the limiting reagent of a reaction
- Be able to calculate percent yield of a reaction
Chemistry: Atoms First (OpenStax) (Chapter 7, sections 3,4,5)
Homework part 3: here
Vocabulary part 3:
- Stoichiometry
- Mole ratio
- Limiting reagent
- Excess reagent
- Theoretical yield
- Actual yield
- Percent yield
Videos:
Sequence
Key Objectives: Reactions
Chemistry - Wilbraham et al (Pearson 2012)
Chapters:
10,11,12
Good Problems to Master:
10:53,55,58,60,61,62,65,66,69,70,75,77,78,83,84,88,93,104
11: 34,35,39,40,41,42,43,45,47,48,49,50,54,55,56,58
12: 39,40,43,44,47,49,51,54,55,56,58,59,61,62,63,68,73,79,81,97
Chemistry - Wilbraham et al (Pearson 2012)
Chapters:
10,11,12
Good Problems to Master:
10:53,55,58,60,61,62,65,66,69,70,75,77,78,83,84,88,93,104
11: 34,35,39,40,41,42,43,45,47,48,49,50,54,55,56,58
12: 39,40,43,44,47,49,51,54,55,56,58,59,61,62,63,68,73,79,81,97
Topics and slides