Lida Tunesi

All Stories by Lida Tunesi

  1. Chemistry

    Explainer: What the pH scale tells us

    The pH scale tells us how basic or acidic something is. Pure water sits in the middle of the scale, at a pH of seven.

  2. Chemistry

    Explainer: What are acids and bases?

    These chemistry terms tell us if a molecule is more likely to give up a proton or pick up a new one.

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