Lithium i believe is the answer
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.
The straight horizontal line shows us that the object is moving at a constant speed
Answer:
Zinc is an <em>element</em>.
Explanation:
Compounds are composed of two or more elements
Delete the cactus and the tree on the right for the first one and the third picture delete the lion moose Buffalo
