# Every chemical formula and equation in the SSLC syllabus.

Syllabus · SSLC · Classes 8 to 10

A Kerala SSLC student meets 52 chemical formulas and 51 chemical equations between Class 8 and Class 10, chapter by chapter. Balancing is explained first, in Class 8, before a chemical formula or a chemical equation has been explained at all; writing a formula follows in Class 9.

**Board**

Secondary School Leaving Certificate, Kerala State syllabus

**Classes covered**

Classes 8 to 10

**Chemical formulas**

52 listed below

**Chemical equations**

51 listed below

**Writing a formula is taught**

Class 9

**Balancing is taught**

Class 8, Part I, Chapter IV — Basic Constituents of Matter

**The gap.** The order is inverted. Balancing an equation is explained in Class 8, before either a chemical formula or a chemical equation has been explained.

Compiled by the author from the board’s own textbooks, chapter by chapter. Equations are recorded as the textbook sets them; where one is printed without being balanced it is marked as such and left as printed. Have a teacher confirm the list against the current edition before it is sent to a school.

## Class 8

### Part I, Chapter IV — Basic Constituents of Matter

Chemical formulas — 8

1. 1 CO2
2. 2 NaCl
3. 3 NH3
4. 4 ZnCl2
5. 5 CO
6. 6 MgO
7. 7 CaCO3
8. 8 FeCl2

| No. | Equation | Condition |
| --- | --- | --- |
| 1 | Zn 2HCl → ZnCl2 H2 | — |
| 2 | C O2 → CO2 | — |
| 3 | H2 Cl2 → 2HCl | — |
| 4 | 2H2 O2 → 2H2O | — |
| 5 | 2Mg O2 → 2MgO | — |
| 6 | N2 3H2 → 2NH3 | — |
| 7 | 2H2O2 → 2H2O O2 | — |
| 8 | CH4 2O2 → CO2 2H2O | — |
| 9 | N2 O2 → 2NO | — |
| 10 | CaCO3 → CaO CO2 | heat |
| 11 | H2 I2 → 2HI | — |
| 12 | Fe 2HCl → FeCl2 H2 | — |
| 13 | CO2 C → 2CO | — |

The author’s note

- Balancing of chemical equations is explained in this chapter, without a chemical formula or a chemical equation having been explained first. A thorough knowledge of writing both is necessary before either can be balanced.

### Part II, Chapter X — Chemical Changes

Chemical formulas — 1

1. 9 MgCl2

| No. | Equation | Condition |
| --- | --- | --- |
| 14 | Mg 2HCl → MgCl2 H2 | — |

### Part II, Chapter XI — Metals

Chemical formulas — 2

1. 10 NaOH
2. 11 AlCl3

| No. | Equation | Condition |
| --- | --- | --- |
| 15 | 2Na 2H2O → 2NaOH H2 | — |
| 16 | 2Al 6HCl → 2AlCl3 3H2 | — |

## Class 9

### Part I, Chapter III — Redox Reactions and the Rate of Chemical Reactions

Chemical formulas — 7

1. 12 SO2
2. 13 SO3
3. 14 BaSO4
4. 15 BaCl2
5. 16 H2SO4
6. 17 CaCl2
7. 18 MgF2

| No. | Equation | Condition |
| --- | --- | --- |
| 17 | 4Al 3O2 → 2Al2O3 | — |
| 18 | 2SO2 O2 → 2SO3 | — |
| 19 | BaCl2 H2SO4 → BaSO4 2HCl | — |
| 20 | 2Mg 2Cl2 → 2MgCl2 Not in lowest terms | — |
| 21 | 2Mg 2F2 → 2MgF2 Not in lowest terms | — |
| 22 | 2Na Cl2 → 2NaCl | — |
| 23 | CaCO3 2HCl → CaCl2 H2O CO2 | — |

### Part II, Chapter V — Acids, Bases and Salts

Chemical formulas — 20

1. 19 HCl
2. 20 HNO3
3. 21 H3PO4
4. 22 H2SO3
5. 23 H2CO3
6. 24 NO2
7. 25 CaO
8. 26 K2O
9. 27 NH4OH
10. 28 KOH
11. 29 Al(OH)3
12. 30 Ca(OH)2
13. 31 Al2O3
14. 32 ZnO
15. 33 CaSO4
16. 34 Al2(SO4)3
17. 35 NaNO3
18. 36 K3PO4
19. 37 MgSO4
20. 38 Mg(OH)2

| No. | Equation | Condition |
| --- | --- | --- |
| 24 | MgO H2O → Mg(OH)2 | — |
| 25 | CaO H2O → Ca(OH)2 | — |
| 26 | NaOH HCl → NaCl H2O | — |
| 27 | Mg(OH)2 H2SO4 → MgSO4 2H2O | — |

The author’s note

- Writing a chemical formula is explained in Class 9 — one year after balancing was set in Class 8.

### Part II, Chapter VI — Non-metals

Chemical formulas — 12

1. 39 ZnSO4
2. 40 Mg(NO3)2
3. 41 NaBr
4. 42 NaH
5. 43 KClO3
6. 44 KCl
7. 45 KMnO4
8. 46 AgNO3
9. 47 AgCl
10. 48 FeSO4
11. 49 CuSO4
12. 50 MnCl2

| No. | Equation | Condition |
| --- | --- | --- |
| 28 | Zn H2SO4 → ZnSO4 H2 | — |
| 29 | Mg 2HNO3 → Mg(NO3)2 H2 | — |
| 30 | Zn CuSO4 → ZnSO4 Cu | — |
| 31 | 2NaBr Cl2 → 2NaCl Br2 | — |
| 32 | S O2 → SO2 | — |
| 33 | H2 S → H2S | — |
| 34 | 2Na H2 → 2NaH | — |
| 35 | 2NaCl → 2Na Cl2 | electrolysis |
| 36 | 2KClO3 → 2KCl 3O2 | heat |
| 37 | 2NO O2 → 2NO2 | — |
| 38 | 2KMnO4 16HCl → 2KCl 2MnCl2 8H2O 5Cl2 | — |
| 39 | Cl2 H2O → HCl HOCl | — |
| 40 | NaCl AgNO3 → AgCl NaNO3 | — |
| 41 | Na2SO4 BaCl2 → BaSO4 2NaCl | — |
| 42 | KCl AgNO3 → AgCl KNO3 | — |
| 43 | ZnSO4 BaCl2 → BaSO4 ZnCl2 | — |
| 44 | 2H2O → 2H2 O2 | electrolysis |
| 45 | FeSO4 Zn → ZnSO4 Fe | — |

The author’s note

- The variable valency of copper and iron is not explained, so the names behind CuSO4, Cu(NO3)2, FeSO4 and FeCl2 cannot be worked out from what has been taught.

## Class 10

### Part I, Chapter III — The Reactivity Series

Chemical formulas — 1

1. 51 Cu(NO3)2

| No. | Equation | Condition |
| --- | --- | --- |
| 46 | 2AgNO3 Cu → Cu(NO3)2 2Ag | — |

### Part II, Chapter V — Compounds of Non-metals

Chemical formulas — 1

1. 52 NH4Cl

| No. | Equation | Condition |
| --- | --- | --- |
| 47 | 2NH4Cl Ca(OH)2 → CaCl2 2H2O 2NH3 | — |
| 48 | NH3 H2O → NH4OH | — |
| 49 | NH3 HCl → NH4Cl | — |
| 50 | C 2H2SO4 → CO2 2H2O 2SO2 | — |
| 51 | Cu 2H2SO4 → CuSO4 SO2 2H2O | — |

## Questions

**How many chemical formulas and equations are in the Kerala SSLC chemistry syllabus?**

52 chemical formulas and 51 chemical equations across Classes 8 to 10. The chapter-by-chapter list on this page enumerates each one.

**When does the Kerala syllabus teach a student to write a chemical formula?**

Class 9. Balancing chemical equations is explained a year earlier, in Class 8, Part I, Chapter IV.

**Why is the Class 8 ordering a problem?**

Balancing an equation requires being able to write a chemical formula and a chemical equation first. Both are explained after it.

## This is the gap the Playbook was written for.

[_The Language of Chemistry, Playbook®_](/playbooks/language-of-chemistry/) teaches the alphabets first — thirty elements and twenty-five radicals as punch-out tokens — then formulas, then balanced equations, in that order and with a score gate at each step. It is the order the tables above are set in and the order the textbooks explain last.

Each of those three steps is published on this site in full: [the valencies](/valency-and-radicals/), [the formulas they build](/chemical-formulas/) and [the equations, worked](/balancing-chemical-equations/) — with [free practice sets](/practice/) drawn from the very inventory above.

[Request a sample copy for your school](/for-schools/) [How the method works](/method/)

### The other boards

- [ICSE — Classes 6 to 9](/syllabus/icse/) · A student writes symbols in Class 6 and balances equations in Class 8, three years and one year respectively before Class 9 explains valency and how a formula is put together.
- [CBSE — Classes 7 to 10](/syllabus/cbse/) · Formulas and equations both appear from Class 7. Writing a formula is explained in Class 9 and balancing in Class 10.