Saskatchewan · Grade 11

Chemistry 20

Saskatchewan’s Grade 11 science course, from Introduction to Chemistry to Mole Concept and Stoichiometry.

Units
7
Lessons
17
Skills
18
Provincial exam
None

Unit by unit

Every skill in the course, numbered by unit.

Unit 1 · 2 skills

Introduction to Chemistry

Laboratory Safety

How Chemistry Affects Us

The official wording · 2 outcomes
1.1
Recognize safe practices and explain the reason for each practice.
1.2
Identify and explain how chemistry affects us.

Key ideas

  1. Safety equipment: fire blanket, extinguisher, eye wash station, and how to use them.

  2. Advances in chemistry create new products that change society.

  3. Handling chemicals: treat all as hazardous, dispose properly, no pipetting by mouth.

  4. Science and technology influence each other; some problems science cannot solve.

Watch out for

  • Assuming a chemical is safe because it looks like water.
  • Thinking science and technology are the same thing.
  • Thinking safety rules are optional formalities.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 2 · 2 skills

Laboratory Activities

Concrete Laboratory Experience

Laboratory Equipment Proficiency

The official wording · 2 outcomes
2.1
Acquire concrete experiences of chemical events which form the basis for abstract understandings.
2.2
Gain proficiency in manipulating laboratory equipment.

Key ideas

  1. Direct observation of chemical events grounds abstract concepts.

  2. Measuring devices (graduated cylinder, balance, burette) each have a proper technique.

  3. Careful observation is the raw material of chemical understanding.

  4. Reading the meniscus and taring a balance give accurate measurements.

Watch out for

  • Treating a lab as a recipe to follow without observing.
  • Reading a graduated cylinder from the top of the liquid, not the meniscus.
  • Ignoring qualitative observations in favour of only numbers.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 3 · 1 skill

Independent Research

Investigating Chemistry Problems

The official wording · 1 outcomes
3.1
Investigate problems in chemistry and in the application of chemistry.

Key ideas

  1. An investigable problem can be narrowed to a researchable or testable question.

  2. Independent inquiry follows a plan: question, method, evidence, conclusion.

Watch out for

  • Picking a question too broad to investigate in the time available.
  • Confusing looking something up with investigating it.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 4 · 4 skills

Atoms and Elements

Ideas About the Structure of Matter

Components of the Atom

  • Components of the atom and isotopes

    I can describe atomic structure, draw Lewis diagrams, and find average atomic mass.

Describing and Classifying Elements

The official wording · 4 outcomes
4.1
Discuss the development of ideas about the structure of matter.
4.2
Identify the relationships among the components of the atom.
4.3
Examine how elements are described and classified.
4.4
how elements are described and classified.

Key ideas

  1. The atomic model evolved from Dalton's solid spheres to Bohr's shells.

  2. Protons and neutrons occupy the nucleus; electrons occupy shells.

  3. Elements have characteristic physical and chemical properties.

  4. Theory is refined to explain new experimental observations.

  5. Isotopes differ in neutron number; average atomic mass weights isotope abundances.

Watch out for

  • Thinking the modern atomic model appeared all at once.
  • Confusing mass number with average atomic mass.
  • Assuming all metals share every property.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 5 · 4 skills

Molecules and Compounds

Formulas and Names of Compounds

Bonding Between Atoms

Forces in Solids and Liquids

Factors Influencing Solubility

The official wording · 4 outcomes
5.1
Use the formulas and names of compounds fluently.
5.2
Discuss the mechanics of bonding between atoms in a molecule.
5.3
Examine the bonding between molecules or atoms in solid and liquid phases.
5.4
Investigate the factors which influence solubility.

Key ideas

  1. Ionic formulas balance charges of ions, including polyatomic ions.

  2. Ionic bonds transfer electrons; covalent bonds share electron pairs.

  3. Solid types: ionic, metallic, covalent molecular, covalent network, and van der Waals.

  4. Water is an excellent solvent for many ionic and polar substances.

  5. Oxidation-state notation names polyvalent metals, e.g. Fe(III); alkanes follow CnH2n+2.

Watch out for

  • Forgetting to balance charges when writing an ionic formula.
  • Thinking all bonds are either purely ionic or purely covalent.
  • Confusing intramolecular bonds with intermolecular forces.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 6 · 2 skills

Chemical Reactions

The Importance of Chemical Reactions

Communicating Reactions with Equations

The official wording · 2 outcomes
6.1
Appreciate the importance of chemical reactions.
6.2
Acquire ability to communicate chemical information through equations for reactions.

Key ideas

  1. Evidence of reaction: colour change, gas, precipitate, energy change.

  2. Equations must balance for both atoms and charge (conservation of mass).

  3. Reactions sustain organisms, harm them, and affect the environment.

  4. Net ionic equations show only the species that change; energy terms show heat flow.

Watch out for

  • Confusing a physical change with a chemical reaction.
  • Changing subscripts instead of coefficients when balancing.
  • Assuming all reactions are harmful or all beneficial.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

Unit 7 · 3 skills

Mole Concept and Stoichiometry

Avogadro's Number and the Mole

Composition and Concentration Calculations

  • Percentage composition and concentration

    I can calculate percentage composition, empirical formulas, and concentrations.

Stoichiometric Calculations

The official wording · 3 outcomes
7.1
Explore the concepts which relate to Avogadro's number.
7.2
Apply knowledge about atomic mass to calculations dealing with molecules.
7.3
Perform stoichiometric calculations.

Key ideas

  1. A mole is Avogadro's number (6.022 x 10^23) of particles.

  2. Percentage composition is each element's mass fraction of the compound.

  3. Coefficients in a balanced equation give the mole ratio of reactants to products.

  4. Molar mass links the number of moles to the mass of a substance.

  5. Empirical formula comes from mole ratios; concentration is moles per litre.

Watch out for

  • Confusing the number of moles with the number of particles.
  • Confusing empirical formula with molecular formula.
  • Using mass ratios instead of mole ratios.

Every skill’s key ideas, worked examples and checks are in MapleMind.Practise this unit

The official curriculum

This page follows Saskatchewan’s own curriculum for Chemistry 20.

Study it in MapleMind

MapleMind teaches Chemistry 20 one skill at a time. Each skill gets a short lesson, practice as you go and a check worth up to three stars. It remembers where you stopped.

English Language Arts A30 / B30 in the MapleMind app on a tablet: its units, Unit 1 open, and the skills done so far with their starsEnglish Language Arts A30 / B30 in the MapleMind app on a phone: its units, Unit 1 open, and the skills done so far with their stars
Pictured: English Language Arts A30 / B30, another Saskatchewan course, partway through Unit 1.

Practise it

Course Companion

Your year in one workbook

A fun way to keep Chemistry 20 organized, get to know your child better and see early when they need a hand. Fill it in on a screen, or print it.

Pages
38
Fillable fields
1,388
Price
$4.99
See the Course Companion

Questions about Chemistry 20

What is Chemistry 20?

Saskatchewan’s Grade 11 science course: 7 units and 18 skills, from Introduction to Chemistry to Mole Concept and Stoichiometry.

What units are in Chemistry 20?

1. Introduction to Chemistry, 2. Laboratory Activities, 3. Independent Research, 4. Atoms and Elements, 5. Molecules and Compounds, 6. Chemical Reactions and 7. Mole Concept and Stoichiometry.

Is there a provincial exam for Chemistry 20?

No. Saskatchewan gives no provincial exam for Chemistry 20.

What comes after Chemistry 20?

Biology 30, Chemistry 30, Physics 30 and Earth Science 30.

Can MapleMind help with Chemistry 20?

Yes. MapleMind teaches every skill of Chemistry 20, step by step, with practice and checks, and its tutor answers questions about any of them. It’s free with daily limits, on iPhone, Android and the web.

Get ready for Chemistry 20

Practise every skill of Chemistry 20 in MapleMind, free with daily limits.