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Are these statements true or false ? thanks in advance

T-A polysaccharide is a polymer made from simple sugars. T-A saturated hydrocarbon has no double bonds.

T-The membrane of an animal cell is composed primarily of phospholipids. F-A triple bond between two carbons consists of 2 sigma-bonds and 1 pi-bond. T-In nuclear fission, light combine to form heavier ones. T-The color of a compound depends on the wavelengths of light that it absorbs

F-A catalyst changes the equilibrium constant of a reaction. F-A buffer solution is composed of a strong acid and its conjugate base. T-The oxidation number of an atom cannot change during a reaction. T-In water, ammonia acts as a weak base.

T-In a reversible process, the change in free energy is negative. F- In a voltaic cell, oxidation occurs at the cathode. T- A bidentate ligand has two donor atoms. T-A diamagnetic material contains no unpaired electrons. T- DNA is an abbreviation for deoxyribonucleic acid.

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