Podcast
Questions and Answers
In a chemical reaction, as per the law of conservation of mass, what happens to the total mass of the elements?
In a chemical reaction, as per the law of conservation of mass, what happens to the total mass of the elements?
- It can be created during a reaction
- It decreases after the reaction
- It is destroyed during a reaction
- It remains the same before and after the reaction (correct)
Why do we need to balance a chemical equation?
Why do we need to balance a chemical equation?
- To increase the number of atoms in the reactants
- To decrease the number of atoms in the products
- To change the type of elements involved in the reaction
- To ensure the number of atoms of each element remains the same before and after a reaction (correct)
What does a balanced chemical equation indicate about the number of atoms of each element?
What does a balanced chemical equation indicate about the number of atoms of each element?
- The number of atoms increases before the reaction
- The number of atoms remains the same before and after the reaction (correct)
- The number of atoms changes after the reaction
- The number of atoms decreases after the reaction
Which step is involved in balancing a chemical equation where you need to draw boxes around each formula first?
Which step is involved in balancing a chemical equation where you need to draw boxes around each formula first?
What does Step III in balancing a chemical equation involve?
What does Step III in balancing a chemical equation involve?
Which element is chosen for adjustment first in Step III of balancing a chemical equation?
Which element is chosen for adjustment first in Step III of balancing a chemical equation?
What is the primary purpose of selecting the element with maximum number of atoms in balancing a chemical equation?
What is the primary purpose of selecting the element with maximum number of atoms in balancing a chemical equation?
What is the significance of ensuring that a chemical equation is balanced?
What is the significance of ensuring that a chemical equation is balanced?
Which step involves adjusting coefficients to balance a chemical equation?
Which step involves adjusting coefficients to balance a chemical equation?
What is done first when balancing a chemical equation?
What is done first when balancing a chemical equation?
