Which of the following has ionic bonds (circle them)? B4C3 K20 HF CaCl2 Give the

Question

Which of the following has ionic bonds (circle them)? B4C3 K20 HF CaCl2 Give the oxidation states of the underline elements. HsPO KNO Ans_ Ans molecules A 1.200 g sample of chlorine gas contains . 1.34 moles of NH2OH has a mass of g. a. To an adiabatic container (C 148 cal/ C) containing 3000.00 g of lead (c 0.0310 cal/g C) all at What is the final thermal equilibrium at 65.0 °C was added 150.00 g sample of ice at (0.00 °C). temperature? Ans b. Hydrogen azide is a highly unstable, highly poisonous gas that will decompose even with the slighte shock. A sudden shock caused 3.389 g of hydrogen azide to completely decompose by the following reaction which is a very exothermic reaction. After the decompositiono The decomposition resulted in the formation of The decomposition resulted in the formation of g of hydrogen azide remained. g of nitrogen gas. BONUS Draw the structure of a NI OH, in which all of the atoms have their common valence. BONUS When 5.00 g of methane (CHa) is burned in excess oxygen, produced g of water is

Explanation / Answer

Calcium chloride (CaCl2) has ionic bond between divalent calcium ion and chloride ion

Thus upon dissociation in aqueous medium it gives rise to one Ca2+ ion and two Cl- ion

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