calculate the density of aluminum if a cylinder weighing 270grams has a volume of 100 cm cm^3. make sure to include units.

27.0 gExplanation:The density of a substance tells you the mass of exactly one unit of volume of said substance.In your case, aluminium is said to have a density ofdensity Al=2.70 g.cm−3This tells you that every 1 mL of aluminium has a mass of 2.70 g.All you have to do now is use the density of aluminium as a conversion factor to go from cubic centimenters of aluminium to grams10.0cm3⋅2.70 g1cm3=27.0 g−−−−− The answer is rounded to three sig figs.Answer link

Explanation:

m=9

step-by-step explanation:

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.