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In the decay series that starts with uranium-238, the first four steps consist of the emission of an alpha-particle, two beta-particles, and then another alpha-particle. What is the daughter isotope after the fourth emission? 1) U-234 2) Th-230 3) Th-234 4) Ra-230 How would I figure that out?
Given a four-carbon chain with two methyl groups and an NH2 group on the fourth carbon and a C=O double bond and an H on the first carbon. It asks me to draw the product of the reaction of this molecule with H3O+ (cat.) and Delta toluene.
How many calories are require to convert 125g of water at 75.0 Celsius to steam at 100.0 Celsius? (heat of vaporization of H2O = 540.0/ H20(LIQUID) = 1.00 / steam = 0.47
Write the condensed structure of the primary alcohol (RCH2-OH type) with the general formula C4H10O.
if 37.0 grams of hydrogen sulfide gas h2s mm 34.08 gmol react with 37.1 grams of oxygen gas o2 mm 32.00 gmol what is
Use Coulomb's law to calculate the ionization energy in kJ/mol of an atom composed of a proton and an electron separated by 270.00 pm.
Aluminum has chemical propertied that are similar to magnesium. What observation might you expect with the addition of 6M HCl
In an electrolysis experiment such as the one you will perform, 1.76 x 10^-3 moles of hydrogen gas were collected, and the metal electrode lost 0.1983 g. The equivalent mass of the metal is approximately what?
Some of the cyclohexane solvent vaporized during the temperature versus time measurements. Will this loss of cyclohexane result in the freezing point of the solution being recorded as too high
Determine the pH and pOH for each of the following solutions: a)[OH^-]=1.0x10^-7 M b)[H3O^+]=4.2x10^-3 M c)[H3O^+]=.0001 M d)[OH^-]= 8.5x10^-9 M
CaCN2 + 3 H2O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced?
determine the mass of rbcn required to prepare a 500 ml solution which is .12 m rbcn mw 112
What is the equilibrium expression for the following reaction. Please interpret as an equilibrium symbol.
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