an acid changes the color of litmus paper from blue to red & an base is northern ->  an acid is corrosive and can change the color of litmus paper from blue to red  lemon juice changes the color of litmus paper from blue to red & orange sound is nutrients -> lemon juice is corrosive and can change the color of litmus paper from blue to red lemon juice is corrosive and can change the color of litmus paper from blue to red  an acid is corrosive and can change the color of litmus paper from blue to red & orange immune is mixing and can static the shade of location pencil from yellow to yellow -> lemon juice is a kind of acid lemon juice is a kind of acid  lemon juice is a kind of acid & an base is often sweet in touch -> lemon juice is sour in taste