Answer:
Morganite has weak violet fluorescence. Beryl (/ˈbɛrəl/ BERR-əl) is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2Si6O18.
Formula mass: 537.50 g/mol
Crystal class: Dihexagonal dipyramidal (6/mm...
Ultraviolet fluorescence: None (some fracture f...
Specific gravity: Average 2.76
Explanation:
Stardust atoms are heavier elements, the percentage of star mass in our body is much more impressive. Most hydrogen in our body floats around in the form of water .
Answer:
2260 J of heat must be absorbed by the water. Conversely, when 1 g of steam at 100 ºC condenses to give 1 g of water at 100 ºC, 2260 J of heat will be released to the surroundings.
Explanation:
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Answer:
The choice c. NH₄CI(s) ⇄ NH₃(g) + HCI(g) is the reversible
Answer:
Covalent
Explanation:
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NO2 is already polar, due to the fact that nitrogen shares a maximum of 3 electrons. Thus N makes two covalent bonds with one oxygen, one covalent and one dative with the other. And there's still a free electron left that causes the molecule to bend, forming an angle, and so the NO2 molecule is polar with an angle other than 180.