Balancing Chemical Equations Practice

The video tutorial explains how to balance the chemical equation H3PO4 + LiOH. It begins by counting the atoms on each side of the equation, focusing on hydrogen, phosphorus, oxygen, and lithium. The tutorial then demonstrates balancing lithium atoms first, followed by hydrogen and oxygen, ensuring the equation is balanced. The instructor highlights common mistakes, such as miscounting atoms, and concludes with a balanced equation.

What is the initial count of hydrogen atoms on the reactant side before balancing?

• 5

• 3

• 2

• 4

How many lithium atoms are present on the product side before balancing?

• 1

• 4

• 2

• 3

What is the first step in balancing the equation?

• Balance hydrogen atoms

• Balance oxygen atoms

• Balance lithium atoms

• Balance phosphorus atoms

After balancing lithium, how many hydrogen atoms are there on the reactant side?

• 3

• 6

• 4

• 5

What is the total number of oxygen atoms on the reactant side after balancing lithium?

• 5

• 6

• 7

• 8

How do you balance the hydrogen atoms in the equation?

• Multiply by 3

• Subtract 1

• Multiply by 2

• Add 1

What is a common mistake when balancing chemical equations?

• Not using coefficients

• Forgetting to balance phosphorus

• Ignoring lithium atoms

• Miscounting hydrogen or oxygen atoms

What is the final balanced equation for H3PO4 + LiOH?

• H3PO4 + 3LiOH → Li3PO4 + 3H2O

• H3PO4 + LiOH → Li3PO4 + H2O

• H3PO4 + 2LiOH → Li3PO4 + 2H2O

• H3PO4 + 3LiOH → LiPO4 + 3H2O

What should you do if you encounter problems balancing the equation?

• Add more reactants

• Recount all atoms

• Change the equation

• Ignore the issue