There are two H2 .There are four nitrogen atoms present. There are two NH3 formed
From the ones that you are showing me <span>the more positive the potential the more likely: </span>
<span>Fe+3 + e- ---> Fe+2
I hope this is something very useful</span>
Answer:
Double Displacement reaction
Explanation:
BaCl2 + Na2SO4 → 2NaCl + BaSO4
Double displacement reaction occurs when the cations and anions of the two reacting compound interchange, forming a new products. From the equation given above, Na^+ switch place with Ba^2 + and likewise Cl^- with (SO4) ^2- to form NaCl and BaSO4.

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Washing your hands beforehand is important in order to minimize contamination of your experiments. This gets rid of things such as bacteria that can interfere with lab results. You should also wash your hands after completing lab because the chemicals you work with can leave toxic or harmful remains on you. It's important to wash those chemical traces off before you go outside the lab area.