Question

drag each number to the correct location on the equation. each number can be used more than once, but not all numbers will be used. balance the equation with the correct coefficients. 2 3 4 5 sio₂ + hf → sif₄ + h₂o

Explanation:

Step1: Balance Si atoms

Si atoms are already balanced (1 on each side).

Step2: Balance F atoms

On the right, \( \text{SiF}_4 \) has 4 F. So, \( \text{HF} \) needs a coefficient of 4. Now equation: \( \text{SiO}_2 + 4\text{HF}
ightarrow \text{SiF}_4 + \text{H}_2\text{O} \)

Step3: Balance O atoms

Left has 2 O (in \( \text{SiO}_2 \)), so \( \text{H}_2\text{O} \) needs coefficient 2. Now: \( \text{SiO}_2 + 4\text{HF}
ightarrow \text{SiF}_4 + 2\text{H}_2\text{O} \)

Step4: Check H atoms

Left: 4 H (from \( 4\text{HF} \)), Right: \( 2\times2 = 4 \) H (from \( 2\text{H}_2\text{O} \)). Balanced.

Answer:

\( \text{SiO}_2 + \boldsymbol{4}\text{HF}
ightarrow \text{SiF}_4 + \boldsymbol{2}\text{H}_2\text{O} \) (Coefficients: 1 (for \( \text{SiO}_2 \)), 4 (for \( \text{HF} \)), 1 (for \( \text{SiF}_4 \)), 2 (for \( \text{H}_2\text{O} \)) – using 4 and 2 from the given numbers)