Question

Which equation shows conservation of atoms? Group of answer choices 2 H2 + 2 O2 ---> H2O 2 H2 + O2 ---> 2 H2O H + O ---> H2O H2 + O2 ---> 2 H2O

Answer 1

The correct equation showing conservation of atoms is 2 H2 + O2 → 2 H2O, adhering to the law of conservation of matter with an equal number of atoms on both sides.

Step-by-step explanation:

The equation which shows the conservation of atoms is 2 H2 + O2 → 2 H2O. This equation demonstrates the law of conservation of matter, meaning that the numbers of atoms for each element are equal on both sides of the equation. In this reaction, we have four hydrogen atoms and two oxygen atoms on each side, which complies with the conservation of atoms principle. Thus, it's a correctly balanced chemical equation.

Answer 2

2 H₂ + O₂ → 2H₂O

Step-by-step explanation:

• The equation that shows the conservation of atoms is the balanced one.
• In this case, the balanced equation is;

2 H₂ + O₂ → 2H₂O

Because it has 4 hydrogen atoms and 2 oxygen atoms on both sides of the equation.

• Chemical equations are balanced to obey the law of conservation of mass that requires the mass of the reactant to be equal to the mass of the products.
• Balancing chemical equations makes the number of atoms of each element in the equation equal, thus conserving the mass in the chemical reactions.