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In the decomposition of water, why is twice as much hydrogen as oxygen formed?(1 point)


Hydrogen gas has two atoms, and oxygen gas has one atom.

Some oxygen gas escapes the reaction, and hydrogen gas is conserved.


There are two atoms of hydrogen and one atom of oxygen in a water molecule.


Hydrogen atoms are twice the size of oxygen atoms.

Respuesta :

Answer:

1. Which statement correctly describes the classification of chemical reactions into different categories?

-Not all reactions fit into a category, and some reactions can fit into more than one category.

2. In a synthesis reaction, two atoms of sodium (Na) combine with one molecule of chlorine gas (Cl2) to produce sodium chloride (NaCl). How many molecules of sodium chloride are produced?

-Two

3. In the decomposition of water, why is twice as much hydrogen as oxygen formed?

- There are two atoms of hydrogen and one atom of oxygen in a water molecule.

4. Which component is transferred between substances in an oxygen-reduction reaction?

-Electrons

5. In a chemical reaction, substance A transfers electrons to substance B. Which statement is correct?

-Substance B is reduced and acts as the oxidizing agent.

samueladesida43

In the decomposition of water, twice as much hydrogen as oxygen is formed because there are two atoms of hydrogen and one atom of oxygen in a water molecule.

WATER MOLECULE:

  • Water is a molecule that structurally contains two atoms of hydrogen and one atom of oxygen i.e. H2O.

  • Water undergoes decomposition reaction to form its constituent elements. The decomposition is as follows:

2H₂O → 2H₂ + O₂

  • Based on the above equation, two molecules of water gives rise to two molecules of hydrogen and one molecule of oxygen. This means that twice as much hydrogen as oxygen is formed.

  • This can be attributed to the fact that there are two atoms of hydrogen and one atom of oxygen in a water molecule.

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