Podcast
Questions and Answers
What is the primary principle that a balanced chemical equation must obey?
What is the primary principle that a balanced chemical equation must obey?
- Law of conservation of mass (correct)
- Law of multiple proportions
- Law of reciprocal proportions
- Law of definite proportions
What is the purpose of balancing a chemical equation?
What is the purpose of balancing a chemical equation?
- To change the reactants into products
- To ensure the number of atoms of each element is the same on both sides (correct)
- To make the equation more complex
- To make the equation look simple
What is the process of representing a chemical reaction using chemical formulas?
What is the process of representing a chemical reaction using chemical formulas?
- Chemical equation representation (correct)
- Stoichiometry
- Chemical reaction notation
- Chemical formula representation
What is the term for the study of the quantitative relationships between reactants and products in chemical reactions?
What is the term for the study of the quantitative relationships between reactants and products in chemical reactions?
What is the correct step in balancing a chemical equation?
What is the correct step in balancing a chemical equation?
What is a skeletal chemical equation?
What is a skeletal chemical equation?
What is the number of atoms of hydrogen in the reactants in the initial equation?
What is the number of atoms of hydrogen in the reactants in the initial equation?
What is the coefficient of Fe in the balanced equation?
What is the coefficient of Fe in the balanced equation?
What is the name of the method used to balance the chemical equation in this example?
What is the name of the method used to balance the chemical equation in this example?
What is the purpose of writing symbols of physical states in a chemical equation?
What is the purpose of writing symbols of physical states in a chemical equation?
What is the number of atoms of iron in the reactants in the balanced equation?
What is the number of atoms of iron in the reactants in the balanced equation?
What is the final step in balancing a chemical equation using the hit-and-trial method?
What is the final step in balancing a chemical equation using the hit-and-trial method?
What is the purpose of including the notation (aq) in a chemical equation?
What is the purpose of including the notation (aq) in a chemical equation?
What is the significance of including the physical state of reactants and products in a chemical equation?
What is the significance of including the physical state of reactants and products in a chemical equation?
What do the symbols above and/or below the arrow in a chemical equation represent?
What do the symbols above and/or below the arrow in a chemical equation represent?
What is the purpose of balancing a chemical equation?
What is the purpose of balancing a chemical equation?
What is the significance of the symbol (g) in the equation 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g)?
What is the significance of the symbol (g) in the equation 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g)?
Why is it necessary to clean a magnesium ribbon before burning it in air?
Why is it necessary to clean a magnesium ribbon before burning it in air?
