Question

video example #2: count the atoms is this a balanced or unbalanced equation? show the work to make this a balanced equatic

Explanation:

Step1: Count atoms in reactants

For \(H_2\): \(H = 2\), for \(O_2\): \(O=2\).

Step2: Count atoms in products

For \(H_2O\): \(H = 2\), \(O = 1\).

Step3: Check balance

Since \(O\) atoms are \(2\) in reactants and \(1\) in products, equation is unbalanced.

Step4: Balance the equation

Multiply \(H_2O\) by \(2\): \(H_2+O_2
ightarrow2H_2O\). Now \(H = 2\) (reactants) and \(H=4\) (products). Multiply \(H_2\) by \(2\): \(2H_2 + O_2
ightarrow2H_2O\).
Now count:

• Reactants: \(H = 4\), \(O = 2\)
• Products: \(H = 4\), \(O = 2\)

Answer:

Unbalanced equation. Balanced equation: \(2H_2+O_2 = 2H_2O\)