Why is O_2 nonpolar? Why does water have high entropy? What is the effect of an impurity on the melting point of a solid? Describe the observations that one would make during the simple distillation of an "impure" substance. Suggest reasons why recrystallization from water would probably not...
Why is O_2 nonpolar? Why is an ethyl radical more stable than a methyl radical? Why is benzene less reactive than 1,3,5-cyclohexatriene? Why does maltose have both alpha and beta anomers? Why is 2 Octanone soluble in water?
a) What is hybridization of valence shell orbitals are predicted on sulphur or carbon in SO2 and CO2? (Hint: Draw the lewis dot structure of each ... Using VSEPR THEORY explain why 1) BF_4^- is a tetrahedral molecule. 2) SF_3^+ is a...
How can you determine if CH3OH is polar or nonpolar? What is the predominant intermolecular force in the liquid state of each of these compounds: methanol (CH3OH), carbon tetrachloride (CCl4), and hydrogen chloride (HCl)? Decide which substance in the following pair ha...
Why is the plasma membrane so important to operation of cells? Is a single molecule of oxygen ( O_2 ) held together by two double nonpolar covalent bonds? H2CO3(aq) + NH4OH(aq) --- (NH4)2CO3(aq) + H2O(l) When balancing the equation why there is a coefficient in front o...
Is a single molecule of oxygen ( O_2 ) held together by two double nonpolar covalent bonds? How can a molecular compound have polar bonds but an overall polarity of a non-polar compound, for example BeCl2? Why would DNA want to add...
Why is O_2 nonpolar? Why are active on-duty firefighters likely to experience the adverse health effects from inhaling 300 ppm of carbon monoxide faster than nonactive off-duty firefighters who inhale the same concentration of the same substance? Explain why potassium cyanide, in terms of solubil...
Why is the boiling point of SnH4 higher than the boiling point of CH4? Difference in Boiling Point: Differences in boiling points of nonpolar compounds depend on their molar masses. This is because only dispersion forces exist in nonpolar compounds. The higher the molar mass, the more...
The complete Lewis structure of CCl2O will have: a) at least one lone pair on each atom b) at least one double bond c) both polar and nonpolar bonds d) resonance forms What is the molecular geometry of PBr3? A. trigonal planar B. trigonal pyramidal C. linear D. tetrahe...
Intermolecular forces are weaker than hydrogen bonding as in hydrogen bonding, a hydrogen atom is bonded to an electronegative element. The strength of the hydrogen bond increases as the electronegativity of the atom bonded to hydrogen increases....