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Balanced or not

Exercise and reference answers

Upper category
BALANCED
Lower category
NOT
Items
  1. Category
    BALANCED
    Item
    C+O2->CO2
  2. Category
    NOT
    Item
    H2+O2->H2O
  3. Category
    BALANCED
    Item
    S+O2->SO2
  4. Category
    NOT
    Item
    N2+H2->NH3
  5. Category
    BALANCED
    Item
    Zn+S->ZnS
  6. Category
    NOT
    Item
    K+O2->K2O
Instructions
Flip the points: are the atoms equal on both sides?

Explanation

_Source: syllabus Science, Ch 1 'Chemical Reactions and Equations' (jesc101)_
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