When 10g of sodium hydroxide is dissolved in 1000cm3 of water, the sodium formed is…
When 10g of sodium hydroxide is dissolved in 1000cm3 of water, the sodium formed is approximately [Na =…
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A change in temperature of a saturated solution disturb the equilibrium between the
A change in temperature of a saturated solution disturb the equilibrium between the A. Dissolved solute and the…
What mass of K2CrO4 is required to prepare 250cm3 of 0.020 mol dm3 solution? [K2CrO4…
What mass of K2CrO4 is required to prepare 250cm3 of 0.020 mol dm3 solution? [K2CrO4 = 194.2g mol-1]…
Farmlands affected by crude-oil spillage can be decontaminated by
Farmlands affected by crude-oil spillage can be decontaminated by A. Adding acidic solution B. Using aerobic bacteria C.…
Which of the following ions is acidic?
Which of the following ions is acidic? A. K+ B. KNO3– C. S2- D. H3O+ Correct Answer: Option…
The structural component that makes detergent dissolve more quickly in water than soap is
The structural component that makes detergent dissolve more quickly in water than soap is A. -SO3– Na+ B.…
A liquid that will dissolve fat is?
A liquid that will dissolve fat is? A. Hydrochloric acid B. Calcium hydroxide C. Kerosene D. Water Correct…
When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes
When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes A. negatively charged B.…
The weakest attractive force that can be observed between two molecules is
The weakest attractive force that can be observed between two molecules is A. ionic B. covalent C. coordinate…
A consequence of global warming is
A consequence of global warming is A. air pollution B. water pollution C. increased humudity D. flooding Correct…