-2.5089 kJ is the amount of heat is released by the combustion of the naphthalene.
<h3>How we calculate the released heat?</h3>
Released amount of heat is calculated by using the below formula:
Q = -mcΔT, where
m = mass of naphthalene = 0.25g
c = specific heat of calorimeter = 4.13 kJ/°C
ΔT = change in temperature = 26.43°C - 24°C = 2.43°C
Putting all these values in the above equation, we get
Q = - (0.25 × 4.13 × 2.43) = - 2.5089 kJ
Hence, - 2.5089 kJ heat is released.
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Answer:Strong bases: OH-, CH3O-, CN-
Nucleophiles: OH-,CN-, NH2-
Leaving groups: Br-, Cl-, H2O,NH3
Explanation: Strong bases have a greater ability to abstract a proton in an elimination reaction. For instance, the OH- easily abstracts a proton to form water. Nucleophilicity is a kinetic property. It measures the rate at which a specie displaces a leaving group from an alkyl halide Good leaving groups are stable anions or neutral molecules. They are often conjugate bases of strong acids.
The hydroxide ion rarely, or almost never acts as a leaving group in SN2 reactions
Calcium forms an ionic bond to iodine and forms calcium iodide (CaI2). The calcium atom gives away 2 of its valence electrons, one to each of the 2 iodine atoms thus forming the ionic bond.
The answer is heterogeneous
Answer:
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