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Which product is formed when Fe2+ ion reacts with the carbonate solution? A) [Fe(H2O)4(OH)2](s) B) [Fe(H2O)3(OH)3](s) C) FeCO3(s) D) Fe2(CO3)3(s)
FeCO3(s)
Which product is formed when Fe3+ ion reacts with the carbonate solution? A) [Fe(H2O)4(OH)2](s) B) [Fe(H2O)3(OH)3](s) C) FeCO3(s) D) Fe2(CO3)3(s)
[Fe(H2O)3(OH)3](s)
The lone pairs on the hydroxide ion can be donated to other compounds A) Lewis base B) Lewis asid C) Bronsted-Lowry asid D) Bronsted-Lowry base
Lewis base
Which of these monomers form condensation polymers? A) CH2=CH-C6H5 B) CH2=CH-COOH C) NH2CH(CH3)COOH D) CH2=CH-CH=CH2
NH2CH(CH3)COOH
What monomers are used to make nylon-6,6 in the lab? A) 1,6-diaminohexane and hexanedioic acid. B) 1,6-diaminohexane and hexanedioyl dichloride C) 1,4- diaminohexane and hexanedioic acid. D) 1,4- diaminohexane and hexanedioyl dichloride
1,6-diaminohexane and hexanedioyl dichloride
A nanoparticle where in each C atom is sp2 hybridized, bonded in a sphere of 60 carbon atoms, consisting of 12 pentagons and 20 hexagons. Reacts with K to make a superconducting crystalline material. What is it?
Buckminsterfullerene
Nanoparticles have different chemical and physical properties compared to macroparticles because ...
Almost all atoms in the nanoparticle contribute to these properties unlike only a few atoms in macroparticles.
Name the base that is found in RNA but not DNA? A) adenine B) cytosine C) guanine D) uracil
uracil
Any enzyme can decompose any substrate. True/False
False
They remain unchanged at the end of the reaction, and can therefore be re-used. They can only work with one type of substrate (i.e. they are highly specific). What is it?
enzymes
The region on the enzyme’s surface where the substrate fits is called .....
the active site
Competitive inhibition process or noncompetitive inhibition process?
Competitive inhibition process
Competitive inhibition process. True/False
False
[Cu(EDTA)]2− is less stable complex than [Cu(H2O)6]2+? True/False
False
[Cu(EDTA)]2− type of the shape?
octahedral
In many countries plastic waste is incinerated to provide heat for power stations. Why PVC, polyvinylchloride, removed from any waste that is to be incinerated?
Its combustion products are harmful and it destroys the ozone layer.
