Set of Low percent, Usb flash and Euler diagram line icons for web app. Gas cylinder, Mail app, Ph neutral icons. Ranking stars, Phone search, Trash bin signs. Chemistry lab. Vector pH scale indicator ...

pH scale diagram, measure how acidic or alkaline an aqueous solution is. The range from 0 to 14, with 7 being neutral. pHs of less than 7 are acidity, greater than 7 are base. Colorful chart vector.

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