Podcast
Questions and Answers
What does a balanced chemical equation ensure?
What does a balanced chemical equation ensure?
- Less reactants than products
- More reactants than products
- Equal amount of each element on both sides (correct)
- Different amount of each element on both sides
Why is balancing a chemical equation important?
Why is balancing a chemical equation important?
- To increase the number of molecules in a reaction
- To create new elements
- To remove the need for coefficients
- To ensure compliance with the law of conservation of matter (correct)
What does the coefficient in a chemical equation indicate?
What does the coefficient in a chemical equation indicate?
- Atomic number of the element
- State of matter of the element
- Color of the compound
- Number of moles of the chemical used (correct)
What is the law of conservation of matter?
What is the law of conservation of matter?
What is the primary purpose of using coefficients in a chemical equation?
What is the primary purpose of using coefficients in a chemical equation?
How can the hydrogen atoms be balanced in a chemical equation?
How can the hydrogen atoms be balanced in a chemical equation?
In balancing the potassium atoms, which compound needed a coefficient added?
In balancing the potassium atoms, which compound needed a coefficient added?
Why does the text suggest putting the coefficient 2 in front of potassium?
Why does the text suggest putting the coefficient 2 in front of potassium?
Which element needed a final check to ensure it was balanced in the chemical equations described?
Which element needed a final check to ensure it was balanced in the chemical equations described?
What is the purpose of counting each molecule again at the end of balancing a chemical equation?
What is the purpose of counting each molecule again at the end of balancing a chemical equation?
How many molecules of oxygen are needed for every molecule of glucose in a balanced chemical equation?
How many molecules of oxygen are needed for every molecule of glucose in a balanced chemical equation?
In balancing chemical equations, what is typically the last step to ensure the equation is balanced?
In balancing chemical equations, what is typically the last step to ensure the equation is balanced?
What is the purpose of changing coefficient numbers in balancing a chemical equation?
What is the purpose of changing coefficient numbers in balancing a chemical equation?
Why is it impossible to increase the number of hydrogen atoms on the reactant side by only 1 atom when balancing a chemical equation?
Why is it impossible to increase the number of hydrogen atoms on the reactant side by only 1 atom when balancing a chemical equation?
In balancing a chemical equation, what should not be changed to adjust the balance?
In balancing a chemical equation, what should not be changed to adjust the balance?
