humans have come to think of bacteria as harmful pathegons that always do harm however this is not the case based on the nitrogen cycle explain why farmers are dependent on bacteria for there crops and what would happen if farmers were able to remove all bacteria from their soil

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

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.

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answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.