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A covalent compound is composed of a nitrogen atom, a hydrogen atom, and a carbon atom. How many electrons should the Lewis structure of the covalent compound contain?
what is the mass in mg of 2.5 x 1018 atoms of americium-241 present in the smoke detectors if a tiny speck of
to heat 236ml of water from 25 degrees celcius to 78 degrees celcius in 2.00 minutes what must be the heat rating of
Please review the occurrence and cycling of calcium in nature, along with its use. Analyze and evaluate the article as to it's contemporary relevance regarding the elements availability, health implications and environmental impact.
A solution of ammonia and water contains 2.70×1025 water molecules and 8.50×1024 ammonia molecules. How many total hydrogen atoms are in this solution. Enter your answer numerically.
Write and equation that represents the reaction of 2% ethanolic PBP solution with 4-methylcyclohexene and name the product
How many moles of Na3C6H5O7 can be produced if one tablet containing 0.0164 mol of NaHCO3 is dissolved?
What are the maximun number of electrons when n=4; n=5, ml=1; n=5, ms=+1/2; n=3, l=2; n=2, l=1. Please show all work.
Dry ice, CO2 (s), has a melting temperature of -78o C and will not form a liquid unless atmospheric pressure exceeds 5.1 atm. The following reaction is conducted at -90o C and 101.325 kPa: CO2 (g) ? CO2 (s)
a reaction known to release heat of four kilo joules takes place in a calorimeter containing two litres of solution and
Write an equation for your preparation of acetyl chloride
What explanation can you give as to why a dilute aqueous solution of PtCl42- is pale yellow to colorless, but a concentrated solution is deep red
Caffeine with a mass of .0104 g was used to prepare caffeine salicylate derivative. How do you find the theoretical yield of caffeine salicyIate. Caffeine with a C8H10N4O2 and caffeine salicylate with a C15H16N4O5.
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