What is the definition of acid ? WILL MARK BRAINLIEST (if the answer is good and hasn't been copied from google and the first one who answer the question )

Compare and contrast physical changes with chemical changes.

Define dew point. i am writing this part to be able to ask the question

Asap! will give brainiest when a heat wave strikes a region causing more people to run air-conditioning units, electrical demand increases. what needs to be done to meet this increased demand? raising the control rodslowering the control rodsremoving the control rods