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Net Ionic Equation Builder
Step-by-step builder for net ionic equations from 6 reaction examples. Walk through molecular equation → complete ionic equation → identify spectator ions → net ionic equation. Covers precipitation, acid-base neutralization, and gas evolution reactions with solubility rules reference.
pH Scale & Indicator Color Simulator
Interactive pH scale with 10 common acid-base indicators displayed as color-changing test tubes. Slide pH from 0-14 to see real-time color transitions for methyl violet, thymol blue, methyl orange, bromocresol green, methyl red, litmus, bromothymol blue, phenol red, phenolphthalein, and alizarin yellow R. Calculates [H⁺], [OH⁻], and pOH.
Functional Groups Recognition
Comprehensive reference card library of 20 organic functional groups organized by category (hydrocarbons, oxygen, nitrogen, sulfur, halogen). Shows structural formula, IUPAC suffix, examples, and key properties including polarity and hydrogen bonding capacity.