To determine the mass of potassium oxide (K₂O) that will be produced, we first need to understand that the Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. Therefore, the total mass of reactants must equal the total mass of products.
In this reaction:
- Mass of potassium (K) = 2 grams
- Mass of oxygen (O) = 5 grams
Total mass of reactants = Mass of K + Mass of O = 2 g + 5 g = 7 grams
According to the Law of Conservation of Mass, the total mass of the products (in this case, potassium oxide, K₂O) will also be 7 grams.
Therefore, the correct answer is:
7 grams
1 answer