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My question is can you tell me how interbreeding, sexual reproduction, natural selection and color are used in describing species?
If 6.15 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 -! CO2 + H2O, how much oxygen is required
How much CH4, in grams, is needed to produce 50.0 grams of CHCl3?
If a 1-inch nail has a mass of 2.2g, what will be the mass of one mole of 1-inch nails?
If you had an excess chlorine, how many moles of aluminum chloride could be produced from 27.0g og aluminum?
captain kirk of the starship enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship.
A molecule of unknown structure has a molecular formula of C9H8O2. In the infrared spectrum there are absorptions at 1761, 1145, and 761 cm-1. In the 13C NMR spectrum there are absorptions at. 168.4, 152.0, 128.2, 128.0, 124.3, 122.8, 116.8, 29.1 ..
Explain how long will it take until 100 atoms of this isotope stay put active in the person. (A person accidentally breathes in 8 times 1018 atoms of this isotope). The first order rate constant for decay of the isotope if 0.086625 s-1
a reaction occurs in a calorimeter that contains 120.0 g of water at 25.0degc and 514.95 cal of heat is evolved. if the
2-methyl-2-butanol reacts with HBr to form 2-bromo-2-methyl butane and water while butanol reacts with HBr to form 1-bromobutane and water. Give a detailed explanation as to why the 2-methyl-2-butanol forms a carbocation in the mechanism while but..
The average per month of energy use is 879 kWh (kilowatt) of electricity. If the price of one kWh is $0.0668 how much money will spend on electricity for one year?
When calculating the moles of neutralized buffer from a graph (to use in the equation for calculating buffer capacity).
The temperature inside a pressure cooker is 1150C. Calculate the vapor pressure of the water inside the pressure cooker.
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