Answer:
1:is option A as it have OH- group (base)
2:a),antacid as it's weak base
Hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6) and nitrogen trifluoride (NF3).
I would say Frost Wedging because water must move, a physical act, and then in must freeze, also a physical act, and then the act of it freezing causes cracks known as frost wedging and that is definitely a physical act. Hope that helps!
Answer:
Explanation:
im sorry dont knwo
i think its the second one
