Curriculum
Science — Second Preparatory
Unit 1: Matter and Energy
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Unit 2: Matter and Chemical Reactions
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Unit 3: Energy Flow in Photosynthesis and Respiration
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Unit 4: Geological Processes
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Text lesson
The Chemical Equation
The Chemical Equation
What is a chemical equation?
What is a chemical equation?
- A chemical equation is a symbolic statement that shows what happens in a chemical reaction, using chemical symbols and formulas.
- The reactants are written on the left of the arrow and the products on the right.
- The arrow shows the direction in which the reaction proceeds.
- Example magnesium reacts with oxygen to form magnesium oxide. In words: magnesium + oxygen → magnesium oxide. In symbols: Mg + O₂ → MgO
The Chemical Equation · 1 / 7