can we say 2H2 as 4 atoms of hydrogen? If no then why
Answers
Answer:
Explanation:
The reaction between hydrogen and oxygen to form water is represented by the following equation.
2 H2 + O2-----> 2 H2O
It is often useful to indicate whether the reactants or products are solids, liquids, or gases by writing an s, l, or g in parentheses after the symbol for the reactants or products, as shown in the following equations.
2 H2(g) + O2(g) -----> 2 H2O(g)
2 Al(s) + Fe2O3(s) -----> Al2O3(s) + 2 Fe(l)
Because so many reactions occur when solutions of two substances dissolved in water are mixed, a special symbol, aq, is used to describe these aqueous solutions.
The process in which a sample dissolves in water will be indicated by equations such as the following.
H2O
C12H22O11(s) C12H22O11(aq)
A chemical equation is a statement of what can happen, not necessarily what will happen. The following equation, for example, does not guarantee that hydrogen will react with oxygen to form water.
2 H2(g) + O2(g) -----> 2 H2O(g)
It is possible to fill a balloon with a mixture of hydrogen and oxygen and find that no reaction occurs until you touch the balloon with a flame. The balanced equation for this reaction describes the relationship between the amounts of hydrogen and oxygen consumed and the water formed if or when this reaction is initiated.