Which chemical equation is the number of atoms in the reactants, the same as the number of atoms in the products
An example of a chemical equation where the number of atoms on both sides (reactants and products) is the same is the following:
2H₂ + O₂ -> 2H₂O
In this equation, there are four hydrogen atoms (2 on each side) and two oxygen atoms (2 on each side). The equation is balanced, meaning the number of atoms in the reactants is equal to the number of atoms in the products.
The chemical equation that has the same number of atoms in the reactants as in the products is a balanced chemical equation. A balanced chemical equation is one where the total number of atoms of each element is the same on both sides of the equation. This is achieved by adjusting the coefficients (numbers in front of the chemical formulas) to balance the equation.
To determine which chemical equation has the same number of atoms in the reactants as in the products, you would need to balance the equation using the concept of stoichiometry.
Here's a step-by-step procedure to balance a chemical equation:
1. Write down the unbalanced equation. For example, consider the unbalanced equation:
A + B -> C + D
2. Count the number of each type of atom on both sides of the equation. In this case, let's assume there are:
Reactants: A (1 atom), B (1 atom)
Products: C (1 atom), D (1 atom)
3. To balance the equation, start by adjusting the coefficients in front of each molecule/compound to ensure the number of atoms of each element is the same on both sides.
In our example, if we put a 1 in front of A, B, C, and D, the equation becomes:
1A + 1B -> 1C + 1D
4. Check if the number of atoms of each element is balanced. In our case, it already is, with 1 atom of each element on both sides.
Therefore, the chemical equation 1A + 1B -> 1C + 1D has the same number of atoms in the reactants as in the products, with 1 atom of each element on both sides.