A.is a mixture of a saturated and unsaturated hydrocarbons in the C3 and C4 range
B.is a mixture of methane and carbon dioxide
C.is a mixture of methane and hydrogen
D.is a mixture of saturated and unsaturated hydrocarbons in the C6 and C7 range
A.equal to that of reactants
B.greater than that of reactants
C.less than that of reactants
A.varies inversely as the particle size and directly as the dust concentration
B.varies inversely as the dust concentration and directly as the particle size
C.varies directly as the particle size as well as the dust concentration
D.varies inversely as the particle size as well as the dust concentration
A.a group of individuals of any one kind of organism
B.all of the population occupying a given area
C.the community and non-living environment working together
D.a portion of the earth where living objects can be found
A.nucleus is split into two fragments
B.two nuclei fuse together and fecrease in mass appears in the form of energy
C.atoms and molecules lose their identity
D.matter appears in the fourth state called plasma
A.powdered limestone and clay
B.gypsum
C.dolomite
D.sand limestone and washing soda
A.Na2CO3.10H2O
B.Na2CO3
C.Na2CO3.H2O
D.Na2CO3.2H2O
A.ammonium carbonate
B.ammonia
C.nitric acid
D.soda ash
A.benzene
B.carbon tetrachloride
C.toluene
D.cyclohexane
