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a) What are three types of covalent bonds?b) Which type of bond shares electrons equally?c) Describe how polar bonds share electrons.
draw a lewis structure for one important resonance form of HAsO4 2-. In clude lone pair electrons and indicate nonzero formal charges
Important information about Nitration, Explain why nitration of 1,4-dichloro-benzene yields the mononitro derivative while N,N'-diacetyl-1,4-phenylenediamine forms
The reaction: 2 HI → H2 + I2, is second order and the rate constant at 800 K is 9.70 × 10-2 M-1 s-1. How long will it take for 8.00 × 10-2 mol/L of HI to decrease to one-fourth of its initial concentration.
calcium malonate, the salt of malonic acid, is found in beetroot and is known as an inhibtor of the citric acid cyle. if a sample of beetroot disolved in water has a pH of 8.20,
Question- 1. Calculate the freezing point of a solution containing 5.8% KCl by mass (in water). Calculate the boiling point of a solution above.
if the initial concentration of is 0.260 and the reaction mixture initially contains no products what are the
At a certain temperature, the pH of a neutral solution is 7.72. What is the value of Kw at that temperature
What volume of 5.00x10^-3 M HNO3 is needed to titrate 80.00 mL of 5.00x10^-3 Ca(OH)2 to the equivalence point
Question- When 4.32 g of HgO (s) forms from its elements how much heat (in kJ) is involved. Take standard heat of formation of solid mercury(II) oxide as - 91 kJ/mol
Yeast and other organisms can convert glucose (c6h12o6) to ethanol (ch3ch2oh) by a process called alchoholic fermentation. The net reaction is
You find a reagent bottle that is labeled with "vanadium (III) nitrate hydrate" and it contains a chalky looking powder. Do you believe the label? Why or why not?
Titration of sodium carbonate with HCl to the methyl orange end point involves the reaction of 1 mole of Na2CO3 with 2 moles of HCl. Write the balanced chemical equation in a.
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