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The metals in Group IIIA, IVA, and VA of the periodic table are not transition metals. However, all but 1 have variable charges. What element in Group IIIA, Period 3 has a fixed charge, and what is that charge?
suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen. what is the limiting reagnant?
when 24 copper pennies are submerged in water the pennies displace 8.26 cm3 of water. if the combined mass of the
suppose 4.00 mol of an ideal gas undergoes a reversible isothermal expansion from volume v1 to volume v2 6v1 at
If an unknown substance has a mass of 0.6035g and a volume of 0.550 mL, calculate the density of the substance. Please show any unit conversion factors. Your answers must have the correct number of sig figures. a. g/ml b.g/l c. kg.ml d.kg/dm^3.
What is the molar heat of vaporiza-tion of C6H6 if the vapor pressure of C6H6 is 120 torr at 27 degree celsius, and its normal boiling point is 80.1 degree celcius.
Calculate how many gallons of the strong vinegar would need to be added to the 10,000 gallons of weak vinegar to obtain a solution that is appropriate 5.10% acetic acid, by mass.
Question- A pot of water at the boiling point (100C) contains 8200g of water. It is allowed to cool to room temperature (25C). How much thermal energy (heat) is given off in the cooling process
Where does it fit in on the phylogenetic tree of life? Provide an example of a bacteriophage and list the sequence of events in its replication cycle.
Calculate the pH at the equivalence point for the titration of 0.210M methylamine(CH3NH2) with 0.210M HCl. The Kb of methylamine is 5.0*10^-4
Identifying and balancing the different types of chemical reactions. Evaluate which processes represent chemical reactions.
What mass of NaCl must be dissolved in 75.0 grams of water to lower the freezing point to -4.00c? The freezing point depression constant, Kfp for water is -1.83 C/m.
Question- Calculate the value of Keq at 298 K for each of the following reactions
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