When left over a flame a marshmallow is consumed in a combustion reaction. assuming a marshmallow is made of entirely sucrose, c12h22o11, and after combustion no residual solid remained, the following chemical equation describes this reaction. c12h22o11(s) + 12 o2(g) → 12 co2(g) + 11 h2o(g) using the equation above, if the marshmallow contains 6.84 g of sucrose and is the limiting reactant, what is the theoretical yield, in g, of h2o?

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l