Final answer:
Both acids and bases can conduct electricity and cause burns, due to their nature as electrolytes and their corrosive characteristics in concentrated forms.
Step-by-step explanation:
Properties that are common to both acids and bases include their ability to conduct electricity and that they can both cause burns when they are in concentrated forms. Acids and bases are both electrolytes, which means they can carry an electric current when dissolved in water. This is because they ionize in solution, which allows the flow of electricity. Moreover, both concentrated acids and bases are corrosive and can cause chemical burns on contact with the skin or other tissues. While they share these properties, they also exhibit differing characteristics, such as taste (acids are sour, and bases are bitter) and their reactions with other chemicals (acids react with active metals to produce hydrogen gas, while bases feel slippery and do not react with metals in the same manner).