4) Consider a chemical reaction at a particular constant temperature T. Which of the following statements is correct?
a) Both the value for Kc and the value for Qc will be the same for all conditions
b) The value for Kc will be the same for all conditions, but the value for Qc will be different for
different conditions
c) The value for Qc will be the same for all conditions, but the value for Kc will be different for
different conditions
d) Both the value for Kc and the value for Qc will be different for different conditions

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

answerspecific gravity;

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.