I) Chemical effect of electric current can result in the evolution of gas, deposition of a metal or change in colour. Give an example each of a) evolution of gas.
b) change in colour observed.

ii) Which of the solution in the figure is the best conductor of electricity if all the circuits are properly connected? Justify your choice.

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum