Acids and bases should not be stored together because they can react with each other to produce hazardous fumes or even explosions. For example, if a strong acid is mixed with a strong base, it can produce heat, steam, and corrosive fumes that can cause serious injury or damage to property. Additionally, some acids and bases can react with each other to form unstable compounds that can decompose or explode without warning. Therefore, it is important to store acids and bases separately in well-ventilated areas and to follow proper safety protocols when handling them.