Indicates which of the following would be considered physical properties (P) and
ID: 473570 • Letter: I
Question
Indicates which of the following would be considered physical properties (P) and which would be considered chemical properties (C) of iron. Iron reacts with oxygen to form iron oxides. Iron melts at 1535 of when iron is immersed in 1M HCI solution, hydrogen gas is produced. Iron can be polished to a high luster. The mass of 10.00 mL of carbon tetrachloride was measured to be 15.94 g. What is the density of carbon tetrachloride? The density of water is 1.00 g/mL. Carbon tetrachloride is insoluble in water. Would carbon tetrachloride float on water or sink beneath water when they are combined? Hexane has a density of 0.66 g/mL and is also insoluble in water. Would hexane float on water or sink beneath water when mixed with water? A student determined that an unknown liquid was soluble in an equal volume of water, had a density of approximately 0.80 g/mL and a boiling temperature of 55.5 degree C. Consult Table 1 and identify the liquid. The liquid is:_Explanation / Answer
2)
a) when two chemicals react to give another material with different chemical properties then reaction is chemical
So reaction of Fe with oxygen is a chemical reaction
b) melting will not change the chemical composition of iron so it is a physical property change (solid to liquid)
c) The reaction will be
Fe(s) + 2HCl --> H2 + FeCl2
So here from iron and HCl we are getting different chemical iron chloride so it is a chemical process
d) now luster or metallic character is a physical property.
3) Density of CCl4 is 1.59 g/cm³
the density of CCl4 is high than water, so it will sink into water
b) the density of hexane is lower than water, so it will float over water
c) as per the property it can be actone