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What are two ways that the measured characteristics of cosmic background radiation provide strong evidence in support of the Big Bang theory and explain how each one is used in support.
A 0.140-mole quantity of CoCl2 is added to a liter of 1.20M NH3 solution. What is the concentration of Co^2+ ions at equilibrium. The formation constant of Co(NH3)6^3+ is 5.0*10^31.
Does the circulatory deliver arsenic to the cells AND does arsenic act upon the cells by direct physical contact
Write balanced net equations for the redox reactions that could occur when the following are mixed a) Ag1+ and Cu b) Cr2O7 2- and Pb c)Which of the two reactions in are extensive? Is it A, B, A and B, or Neither
The reaction of 2,2-dimethyl-1-propanol with HBr is very slow and gives 2-bromo-2-methyl-propane as the major product.
Calculate the mass of oxygen dissolved in a 5.00 L bucket of water exposed to a pressure of 1.13 atm of air. Assume the mole fraction of oxygen in air
What are the total pressure in the flask and the partial pressure of HOF after exactly 30 minutes and After 45 minutes If the partial pressure of HOF in a 1.00-L flask is initially1.00 × 10 2 mm Hg at 25 °C?
a solid weak acid is weighed dissolved in water and dilutedto exactly 50.0 ml.25.00ml of the solution is taken out and
(alpha)-Synuclein is a protein that makes membranes, including vesicles bend. It can bend spherical vesicles into tube-like shapes called tubules. The molecular weight of (alpha)-synuclein is 15,400 g/mol.
According to the following balanced reaction, how many moles of NO are formed from 8.44 moles of NO2 if there is plenty of water present? 3 NO2(g) + H2O(l) = 2 HNO3(aq) + NO(g)
Calculate the quantity of energy produced per gram of reactant for the fusion of -3 (atomic mass = 3.016049 ) with -1 (atomic mass =1.007825 ) to form -4 (atomic mass = 4.002603
explain the probable effect of this procedural change on the experimental results?
A cylinder with a piston contains 897 ml of dry oxygen at a pressure of 582 mm Hg and a temperature of 327 K. If the temperature is reduced to 286 K and the pressure increased to 628 mm Hg what is the new volume ?
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