The mineral is calcite.
Lustre — glassy; ∴ non-metallic
Hardness — between a fingernail (2.5) and a penny (3)
Streak — white
Specific gravity — 54/20 = 2.7
Colour —white
Acid reaction — Fizzes; ∴ a carbonate
The only carbonate mineral that satisfies all these criteria is calcite, CaCO₃.
Answer:
There is no chemical symbol for paper since it is not an element but rather a mixture of several different compounds. Mixtures in two or more phases are heterogeneous mixtures.
Explanation:
The wavelength of a photon is 622nm and it is a red light.
<h3>What is Wavelength?</h3>
The length of a waveform signal that is propagating in space or over a wire is measured by the separation between identical points (adjacent crests) in the adjacent cycles. This length is typically specified in meters (m), centimetres (cm), or millimetres (mm) in wireless systems (mm).
<h3>What is Photon?</h3>
A discrete bundle (or quantum) of electromagnetic (or light) energy is referred to as a photon. Photons move at the speed of light (3 108 m/s) because they have no mass.
<h3>What are the calculations?</h3>
λ = v/f
where, f = frequency = 4.82 ×
v = speed of light = 3 × m/s
λ = 3 × / 4.82 ×
λ = 6.22 ×
λ = 622 nm.
Hence, the wavelength of a photon is 622nm and it is red light.
To know more about Wavelength, check out:
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