Answer is: coefficient is one.
Chemical reaction: SiO₂ + 4HF → SiF₄ + 2H₂O.
Reaction is balanced when there are equal numbers of elements in both side of the chemical reaction.
HF - hydrofluoric acid, <span>highly corrosive, dissolves many materials.</span>
SiF₄ - silicon tetrafluoride.
I think B
Hope this helps!
Answer:
b
Explanation:
Plants need carbon dioxide and let out oxygen
Name for the compound HF is Hydrogen fluoride.
Hope this helps!
