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Any naturally occurring homogeneous solid that has a definite (but not fixed) chemical composition and a distinctive internal crystal structure.
Minerals are usually formed by inorganic processes.
Synthetic equivalents of various minerals, such as emeralds and diamonds, are manufactured for commercial purposes.
Although most minerals are chemical compounds, a small number (e.g., sulfur, copper, gold) are elements.
Minerals combine with each other to form rocks.
For example, granite consists of the minerals feldspar, quartz, mica, and amphibole in varying amounts.
Rocks are generally, therefore, an intergrowth of various minerals.<span> </span>
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The entire distribution of electromagnetic radiation according to frequency or wavelength
Answer:
The no. of protons = atomic number
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Answer:
36 KJ of heat are released when 1.0 mole of HBr is formed.
Explanation:
<em>By Hess law,</em>
<em>The heat of any reaction ΔH for a specific reaction is equal to the sum of the heats of reaction for any set of reactions which in sum are equivalent to the overall reaction:</em>
H 2 (g) + Br 2 (g) → 2HBr (g) ΔH = -72 KJ
This is the energy released when 2 moles of HBr is formed from one mole each of H2 and Br2.
Therefore, Heat released for the formation of 1 mol HBr would be half of this.
Hence,
ΔHreq = -36 kJ
36 KJ of heat are released when 1.0 mole of HBr is formed.
Answer:
In 1 mol of anything, you have 6.02×10²³ particles, so 1 mol of F₂ contains 6.02×10²³ molecules.