WORD
AND
F OR M U L A
E QU AT IO N
S
OBJECTIVES
UNDERSTAND LEARN KNOW
the difference between how to translate a word
the basic rules of
word and formula equation to a formula
writing chemical
equations equation and vice
equations.
versa
Match the word equation with the correct
ngage: Think – Pair - Share formula equation then balance it.
Word equation Formula equation
1. Potassium reacts with chlorine gas to A. Mg + O2 (g) MgO
produce potassium chloride
2. Magnesium + Oxygen Magnesium B. Na2CO3(s) +KCl(s)→K2CO3(s)+NaCl(s)
oxide ATL Skills:
Collaboration skills
Critical Thinking Skills
3. Zinc + carbon Dioxide zinc oxide + C. K + Cl2 KCl Communication Skills
Carbon
4. Sodium carbonate (solid) reacts with D. Zn (s) + CO2 (g) ZnO (S) + C (s)
potassium chloride (solid) to produce
potassium carbonate (solid) and sodium
chloride (solid).
Match the word equation with the correct
ngage: Think – Pair - Share formula equation then balance it.
Word equation Formula equation
1. Potassium reacts with chlorine gas to C. 2K + Cl2 2KCl
produce potassium chloride
2. Magnesium + Oxygen Magnesium A. 2Mg + O2 (g) 2MgO
oxide
3. Zinc + carbon Dioxide zinc oxide + D. 2Zn (s) + CO2 (g) 2ZnO (S) + C (s)
Carbon
4. Sodium carbonate (solid) reacts with B. Na2CO3(s) +2KCl(s)→K2CO3(s)+2NaCl(s)
potassium chloride (solid) to produce
potassium carbonate (solid) and sodium
chloride (solid).
Study
Chemical reactions occur when chemical bonds between atoms are
formed or broken.
The substances that go into a chemical reaction are called the
reactants, and the substances produced at the end of the reaction are
known as the products.
And an arrow represents the progress of the reaction.
Reactants Products
The reactants and products might be written as words to form word
equation. Or as their chemical symbols to form a formula equation.
Chemical react ion s
produce new subs t a n c es
Tr a n s l a t e a w o r d e q u a t i o n i n t o f o r m u l a
eq u a t i o n
Molecular model: REMEMBER
DIATOMIC ATOMS
H2
Word equation: O2
Solid Magnesium reacts with Oxygen gas to
produce solid magnesium oxide N2
Cl2
Formula equation:
-------------????????-----------------
F2
I2
Remember to mention the states of matter: Solid (s), Br2
Liquid (l) , Gas (g) and aqueous solution (aq)
Tr a n s l a t e a w o r d e q u a t i o n i n t o f o r m u l a
eq u a t i o n
Molecular model: REMEMBER
DIATOMIC ATOMS
H2
Word equation: O2
Solid Magnesium reacts with Oxygen gas to
produce solid magnesium oxide N2
Cl2
Formula equation: 2 Mg (s) + O2 (g) → 2 MgO (s)
F2
I2
Remember to mention the states of matter: Solid (s), Br2
Liquid (l) , Gas (g) and aqueous solution (aq)
ACTIVATE: GIVE IT A TRY
Construct the balanced chemical equation for the following reaction:
- Copper metal reacts with hydrochloric acid to produce copper (II) Chloride
and hydrogen gas.
Transfer the following formula equation into word equation
- AgNO3(aq) + NaBr (aq) AgBr (S) + NaNO3 (aq)
ACTIVATE: GIVE IT A TRY
Construct the balanced chemical equation for the following reaction:
- Copper metal reacts with aqueous hydrochloric acid to produce a solution of
copper (II) Chloride and hydrogen gas.
Cu(s) + 2HCl (aq) CuCl2 + H2 (g)
Transfer the following formula equation into word equation
- AgNO3(aq) + NaBr (aq) AgBr (S) + NaNO3 (aq)
Aqueous Silver Nitrate + Aqueous sodium bromide solid silver bromide +
aqueous sodium nitrate
THANK
YOU
SO M U CH!
Rais e y o u r h an d if y o u
h av e an y q u e s t ion s for
us
