How many total atoms are in the reactants?
To determine the total number of atoms in the reactants, we need to know the specific reactants involved in the chemical reaction. Please provide the chemical equation or the reactants.
2H2O → O2 + 2H2
In the given chemical equation, the reactants are 2H2O (water).
To calculate the total number of atoms in the reactants, we can count the atoms in each molecule and multiply by the coefficient indicating how many molecules are involved in the reaction:
2H2O:
2 molecules of water contain 2 x 2 = 4 hydrogen atoms (H)
2 molecules of water contain 2 x 1 = 2 oxygen atoms (O)
Therefore, the total number of atoms in the reactants is 4 hydrogen atoms and 2 oxygen atoms, so there are a total of 4 + 2 = 6 atoms in the reactants.
To determine the total number of atoms in the reactants, you need to know the chemical formula of each reactant and the number of atoms in that formula.
Start by writing down the balanced chemical equation for the reaction. The coefficients in front of each reactant represent the number of moles of each substance involved in the reaction.
For example, let's consider the reaction: 2 H2 + O2 → 2 H2O
In this equation, there are two moles of hydrogen gas (H2), one mole of oxygen gas (O2), and two moles of water (H2O) produced.
Next, you need to determine the number of atoms in each molecule or formula unit.
In H2, there are two hydrogen atoms per molecule. Therefore, in two moles of H2, there would be 4 moles of hydrogen atoms.
In O2, there is one oxygen atom per molecule. Therefore, in one mole of O2, there would be 2 moles of oxygen atoms.
In H2O, there are two hydrogen atoms and one oxygen atom per molecule. Therefore, in two moles of H2O, there would be 4 moles of hydrogen atoms and 2 moles of oxygen atoms.
To calculate the total number of atoms in the reactants, you add up the number of atoms for each element in each reactant.
Total number of hydrogen atoms = 2 x 4 = 8
Total number of oxygen atoms = 1 x 2 = 2
Therefore, there are a total of 8 hydrogen atoms and 2 oxygen atoms in the reactants.