Adding argon to the system
Lowering the temperature
Adding hydrogen to the system
Decreasing the pressure
Increasing the temperature
Correct answer is A
No explanation has been provided for this answer.
Which of the following metals will displace iron from a solution of iron(ll)tetraoxosulphate(lV)?
Copper
Mercury
Silver
Zinc
Gold
Correct answer is D
No explanation has been provided for this answer.
2MnO-4 + 10Cl- + 16H+ → 2Mn2+ + 5Cl2 + 8H2O. Which of the substances serves as an oxidizing agent?
Mn2+
Cl-
H2O
MnO-4
Cl2
Correct answer is D
No explanation has been provided for this answer.
increase in temperature, decrease in pressure
increase in temperature, increase in pressure
decrease in temperature,increase in pressure
decrease in temperature, decrease in pressure
constant in temperature, increase in pressure
Correct answer is A
No explanation has been provided for this answer.
Al and Mg
Zn and Fe
Zn and Pb
Pb and H
Au and Hg
Correct answer is A
The electrochemical series, also known as the activity series, is a list of metals listed in order of decreasing reactivity or in order of decreasing ease of oxidation.
Magnesium comes before Aluminium in the series