All substances can be characterized by their unique sets of physical and chemical properties. Properties that can be determined without changing the composition of a substance are referred to as physical properties. Characteristics such as melting point, boiling point, density, solubility, color, odor, etc.
<span>c = speed of light = 3.00 x 10^5 km/s = 3.00 x 10^8 m/s λ = wavelength of the microwave radiation = 3.50 cm = 0.035 m f = frequency (in Hertz) = to be determined f = c/λ = 3.00 x 10^8 m/s / 0.035 m f = 8.57 x 10^9 Hz Frequency</span>
