Access the periodic table with atomic weight, electronegativity, electron affinity, ionization energy, radius, and isotopes. Compare element properties. Search for compounds and reactions. View chemical equations and formulas.
Calculate in US Gallons, Imperial Gallons, or Liters for square, rectangular, free form, circular, oval, and elliptical shapes. Convert feet to meters, temperature, pressure, flow rate, and gallons to liters.
Calculate and engineering parameters with 134 formulas. Input values to compute force, friction, acceleration, work, power, and more. Access definitions and formulas for each calculation. First 5 calculators are free; others require in- purchase.