The image represents the reaction between a certain number of molecules of N2 and H2. Two squares are shown. Inside the square on the left three units of two joint circles are shown. The molecular formula of nitrogen gas is shown on top of this square. The square on the right also has three units of two joint circles. The molecular formula for hydrogen gas is shown on top of this square If the maximum possible amount of NH3 is formed during the reaction, what is the leftover reactant? (4 points) One molecule of N2 One molecule of H2 Two molecules of N2 Two molecules of H2

explanation:

metals have excess of electrons whereas non-metals have deficiency of electrons. thus, in order to gain stability metals easily donate their electrons to the non-metals.

for example, electronic configuration of sodium is and electronic configuration of phosphorous is .

when a phosphorous atom and sodium atom combine together then sodium will donate is extra one electron to the phosphorous atom. as a result there will be formation of ionic bond between sodium and phosphorous.

the reaction will be as follows.

there, are three sodium sodium atoms and each of them will donate its one extra electron to phosphorous atom. thus, the sub-shell of phosphorous gets completely filled.  

thus, we can conclude that electrons are transferred from atoms of sodium to atoms of phosphorous. this transfer makes the sodium atoms donate one electron and the phosphorous atoms to gain one electron. as a result, the sodium and phosphorus atoms strongly attract each other.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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