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Write symbol for bromine. What is the atomic number of it in periodic table? How many protons and electrons are there in the atom of bromine? Give the highest possible and minimal oxidation number for bromine. Determine it is molar mass.
Explain why the balloon would float when heated. Make sure to discuss which factors change and which remain constant, and why this matters. Be complete.
in nature the element x consists of two naturally occurring isotopes. 107x with abundance 54.34 and isotopic mass
What happens to the body that allows it to compensate (over this period of time) for the reduced pressure , so that the athletes will not become lightheaded?
Compound A has the molecular formula C14H25Br and was obtained by reaction of sodium acetylide with 1,12-dibromododecane. On treatment of compound A with sodium amide, it was converted to compound B (C14H24).
Which one of the following alcohols undergoes dehydration at the fastest rate on being heated with sulfuric acid. pentanol
In the presence of a tungsten catalyst at high temperatures, the decomposition of ammonia to nitrogen and hydrogen is a zero order process. If the rate constant at a particular temperature is 3.7*10^-6 mol/L*sec
calculate the molar concentration and the molarity of a sulfuric acid solution of density 1.198 g/mol,
What is the limiting reactant when ammonium nitrate is synthesized from its elements in their standard states and 1.0 L of all reactants are used at a constant pressure and temperature
the equivalence point occured at 4.67 mL of HCl. Calculate the pH at 0.00 mL of added HCl and at 2.00 mL of added HCL
Complete and balance the equation for this reaction in acidic solution. Phases are optional
What is the heat of combustion of the glucose expressed in kJ/mol C6H12O6? (1) +2.80x10^3 kJ (2) -2.80x10^3 kJ (3) -15.6 kJ (4) +65.4 kJ (5) -65.4 kJ The correct answer is B, however
What is the enthalpy change for converting 1.00 mol of ice at -50.0°C to water at 70.0°C? The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K and 1.84 J/g-K respectively. For H2O, Hfus = 6.01 kJ/mol, and Hvap= 40.67 kJ/mol.
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