Question

what is acid?..Please help tomorrow is my test​

Answer 1

Answer:

a liquid substance that can dissolve metal and may burn your skin or clothes. Acids have a pH value of less than 7

Answer 2

$\huge\mathbb\red{Answer:-}$

ACID :: The Substances Which releases H + ions on dilution and It's pH is less than 7 .

are called Acids

hope it helps u dear ☺