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The time required for one-half of the atoms of a radioactive nuclei sample to decay is called the ________ of the nuclei.
The type of nuclear reaction shown below is _____________ which can be recognized by the fact that it has 2 reactant and 2 products.
The nuclear symbol of the missing material is: ______________
27Al13 + ? -> 30P15 + 1n0
Determine the molarity of the solution If 3.00 grams of Ammonium sulfate is dissolved in enough H2O to form 300. mL of solution,?
Concentrated hydrochloric acid is 38% HCl by weight and has a density of 1.19 g/mL. A solution is prepared by measuring 25 mL of the concentrated HCl,
Calculate the molarity of a solution of glycerol made by dissolving 53.000 mL glycerol at 15 'C in enough water to make 270.00 mL of solution.
A jogger runs at an average speed of 5.9 mi/h. a. How fast is she running in m/s? b. How many kilometers does she run in 98 min?
Calculate the molar concentration of Tl+ and Cl- in this saturated solution. Calculate Ksp value for TlCl at this temperature
A tablet of Vitamin C changed color at 23.7 mLs of Iodine. how do you determine how much vitamin c is in the tablet.
18.25 ml of 0.197 M NaOH will neutralize 10.00 ml of what molar concentration of H2SO4 solution?
If 35.27 g of sodium carbonate react completely, how many grams of H2O will be produced?
A solution was prepared by dissolving 620 grams of ethylene glycol, C2H6O2 in 1000 grams of water. Find the concentation of ethylene glycol in molality. Find the freezing point and boiling point of the solution. For water Kf= -1.86 Celsius m-1 and..
equilibrium contains 2.4 moles of Cl2, 1.0 mole of NOCl, and 4.5 x 10-3 moles of NO. Calculate K at this temperature for the following reaction
Friedel-Crafts alkylation and acylation reactions won't work because of the deactivating nitro group present on the benzene ring. Propose an alternate pathway to the ketone product desired
explain the main concept behind the VSEPR theory of molecular shape. how do both number and type of electron pairs influence the shape of a molecule?
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