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On the basis of difference in electronegativity, predict whether the subsequent pairs of elements will form and ionic or polar covalent bond
a. Al, Cl
b. Ca, I
c. K, O
d. Mn, Te and SO3 is a nonpolar molecule but SO2 is polar explain
(a) Explain How many grams of N2(g) will be formed from 5.19 x 1022 molecules of CO(g) at STP. (b) Name each chemical.
How much heat is liberated by the combustion of 183 g of hydrogen? ΔHcomb = -286 kJ/mol.
The chemical formula of hydrogen cyanide is HCN. How many unshared electrons are associated with a molecule of hydrogen cyanide.
Suppose that a solution is 4.5×10?2 in calcium chloride and 9.5×10?2 in magnesium nitrate. What mass of sodium phosphate would have to be added to 1.5 of this solution to completely eliminate the hard water ions. Assume complete reaction.
Give the balanced thermochemical equation for the following reactions. show the correct physical state in each equation.
Calculate the root mean square (rms) average speed of the atoms in a sample of xenon gas at 0.11 atm and -37C.
Calculate the molarity and the molality of reagent grade nitric acid. The specific gravity of this solution is 1.40 and its weight percent of solution is 70.0%
The chiral carboxylic acid A (C5H6O2) reacts with 1 mol of hydrogen gas on catalytic hydrogenation. The product is an achiral carboxylic acid B (C5H8O2). What are the structures of Compounds A and B?
Calculate the percent compostion of impure benzoic acid. The orignial weight of benzoic mixture was 4.23 g
B. If each mole of gas occupies 59 L under the conditions of the explosion, how many liters of gas are produced. C. Express your answer using two significant figures. How many grams OF N2are produced in the detonation
A sample of nitrogen gas that occupies a volume of 31.2 L at a temperature of 0 oC and a pressure of 1 atm contains , answer in moles of gas please.
N2(g) + O2(g) 2NO(g) If more NO is added bringing its concentration to 0.800 M define what will the final concentration of NO be after equilibrium is re-established
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