Which is reactant and product ?
1) C(s)+O2(g)--> CO2 (g)
2) N2(g)+ O2(g) --> 2NO(g)
Reactants are on the left. Products are on the right.
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In chemical reactions, reactants are the substances that undergo a change and are present at the start of the reaction, while products are the new substances that are formed as a result of the reaction.
Let's analyze the given reactions:
1) C(s) + O2(g) --> CO2(g)
In this reaction, the reactants are carbon (C) in solid form (s) and oxygen (O2) in gaseous form (g). The arrow (-->), known as the yield or reaction arrow, indicates the direction of the reaction and separates the reactants from the products. The product, in this case, is carbon dioxide (CO2) in gaseous form (g).
2) N2(g) + O2(g) --> 2NO(g)
For this reaction, the reactants are nitrogen (N2) in gaseous form (g) and oxygen (O2) in gaseous form (g). The product is nitrogen monoxide (NO) in gaseous form (g), and the coefficient "2" in front of NO indicates that two moles of NO are formed for every one mole of N2 and O2 reacted.
To summarize:
1) Reactants: C(s), O2(g)
Product: CO2(g)
2) Reactants: N2(g), O2(g)
Product: 2NO(g)