Common misconceptions about stoichiometry in Grade 10 include:

1. What It Really Means:

   • Many students think stoichiometry is just about making equations balance. In reality, it's about understanding how much of each substance is used or produced in a reaction.

2. Reactants and Leftovers:

   • About 70% of students wrongly believe that all reactants are completely used up in a reaction. But that’s often not the case—sometimes there are leftovers!

3. Molar Ratios Matter:

   • Students often overlook the importance of molar ratios. These ratios help us figure out how much product we can make from our reactants.

4. Why It’s Important:

   • Stoichiometry is very important in the real world. For example, in medicine, if we start with 1 gram of a reactant, we might only get 0.8 grams of product. This shows how important it is to be efficient in using materials.