Page 98 - ICSE Chemistry 8

5 Language of Chemistry

Learning Outcomes Key Concepts
Students will be able to
• Elements and Their
• recall the symbols of diff erent elements.
Symbols
• derive the formulae of compounds on the basis of valencies of elements
• Compounds and Their
and radicals.
Formulae
• write chemical equa on of a reac on.
• Chemical Equations
• balance chemical equa ons by applying the law of conserva on of mass.
(From Word Equations)
• Balancing a Chemical
Equation
• Information Gathered
from a Chemical
Equation
• Limitations of a Chemical
Equation

Warm Up Activity
Based on your previous knowledge, answer the following ques ons.
• Write the symbols of the following elements.

Element Symbol Element Symbol
Hydrogen Nitrogen
Oxygen Sulphur
Magnesium Chlorine

Sodium Iodine
Carbon Calcium
• Using the Internet, fi nd out one use of each of the elements men oned below.
Hydrogen: ___________________________________________________________________________
Nitrogen: ___________________________________________________________________________
Oxygen: ___________________________________________________________________________
Sulphur: ___________________________________________________________________________
Magnesium: ___________________________________________________________________________
Chlorine: ___________________________________________________________________________
Sodium: ___________________________________________________________________________
Iodine: ___________________________________________________________________________
Carbon: ___________________________________________________________________________
Calcium: ___________________________________________________________________________

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