2 H2 + O2 -> 2 H2O
2 grams + 32 grams -> _ _ _ _ _ grams
how would the mass of water formed in the reaction compare to the mass of oxygen and hydrogen that reacts?
include types of change illustrated in the balanced equation.
explain the conversation of matter and determine the unknown amount of mass
explain the production of water.
To determine the mass of water formed in the reaction, we can simply look at the coefficients in the balanced equation.
From the balanced equation: 2 H2 + O2 -> 2 H2O
We can see that for every 2 moles of H2 and 1 mole of O2, we obtain 2 moles of H2O.
To calculate the masses involved, we need to determine the molar masses of each compound. The molar mass of H2 is approximately 2 grams/mol, and the molar mass of O2 is approximately 32 grams/mol.
So, if we have 2 grams of H2 reacting, we can convert it to moles by dividing by the molar mass: 2 grams H2 / 2 grams/mol = 1 mol H2
Similarly, for 32 grams of O2: 32 grams O2 / 32 grams/mol = 1 mol O2
Now, according to the balanced equation, for every 2 moles of H2, we produce 2 moles of H2O. Therefore, the moles of H2O formed would also be 1 mol.
Finally, to find the mass of water formed, we can multiply the number of moles of H2O by its molar mass of approximately 18 grams/mol (the molar mass of water): 1 mol H2O * 18 grams/mol = 18 grams of water.
So, the mass of water formed in the reaction would be 18 grams, which is equal to the combined mass of hydrogen and oxygen that reacted.
The types of change illustrated in the balanced equation are:
- Formation: Two molecules of hydrogen gas (H2) and one molecule of oxygen gas (O2) react to produce two molecules of water (H2O).
- Conservation of matter: The number of atoms of each element is equal on both sides of the equation, demonstrating the conservation of matter. In this reaction, two hydrogen atoms and one oxygen atom combine to form two water molecules, with no atoms being created or destroyed.
The production of water in this reaction is a result of a chemical reaction called a synthesis or combination reaction. The hydrogen and oxygen gas molecules combine together to form water molecules. In the process, the bonds between the hydrogen atoms and oxygen atoms are broken, and new bonds form between the hydrogen and oxygen atoms to create the water molecules. The balanced equation shows the stoichiometry or the ratio of the reactants and the products, indicating that for every 2 moles of hydrogen gas and 1 mole of oxygen gas, 2 moles of water are produced.