You tryna cheat? I think it’s four so hopefully not
The answer to your question is,
An Arrhenius acid is a type of substance that separates in water to form Hydrogen ions.
-Mabel <3
Answer:4 pairs of electrons
Explanation: SiCl4 is a tetrahedral because it has four pairs of electrons.
Answer:
This is a chemical change because it has been lit on fire. When it is lit on fire, the fire has been made, heat has been made, and gasses produced from the fire have also been made. Because this introduces new matter to the pictures, it is a chemical reaction.
Explanation: