A) NiSO4(H2O)7 B) Ni(SO4)2 C) NiSO4(H2O)6 D) NiSO4
A) Blue B) White C) Turquoise D) Yellow
A) 5,000 B) 40,000 C) 100,000 D) 10,000
A) 30.7 and 53.8 °C B) 0.0 and 30.7 °C C) 50.0 and 70.0 °C D) 20.0 and 40.0 °C
A) Yellow B) Green C) Turquoise D) Blue
A) Above 100 °C B) Above 640 °C C) Above 1000 °C D) Above 330 °C
A) 330 °C B) 1210 °C C) 53.8 °C D) 640 °C
A) Reacting with sulfuric acid B) Heating the hydrates above 330 °C C) Cooling the heptahydrate D) Exposure to air
A) Paramagnetic B) Diamagnetic C) Non-magnetic D) Ferromagnetic
A) Nickel oxide B) Nickel sulfate C) Ammonium sulfate D) Nickel carbonate
A) Laboratory synthesis from iron B) By-product of copper refining C) Atmospheric deposition D) Natural mining of retgersite
A) Nickel heptahydrate B) Nickel carbonate C) Nickel ammonia complex D) Nickel oxide
A) Retgersite B) Morenosite C) Dwornikite D) Nickelhexahydrite
A) Tetragonal hexahydrate B) Dwornikite C) Nickelhexahydrite D) Morenosite
A) Nickelhexahydrite B) Dwornikite C) Retgersite D) Morenosite
A) Dwornikite B) Morenosite C) Nickelhexahydrite D) Retgersite
A) 10.5% B) 19.0% C) 5.0% D) 50.0%
A) Human carcinogen B) Inert compound C) Non-toxic substance D) Developmental toxin
A) [Ni(H2NCH2CH2NH2)3]SO4 B) [Ni(H2O)6]2+ C) Ni(NH4)2(SO4)2 D) [Ni(NH3)6]SO4 |