Walt tests his hypothesis that the chemical reaction between an acid and a base always releases heat. When he mixes vinegar and baking soda, the
material becomes colder. What should Walt do next?
A. Conclude that something was wrong with one of the compounds
B. Revise his hypothesis and test other acids and bases
C. Decide that this is not a reaction between an acid and a base
D. Report that the hypothesis is useless because it made an incorrect
prediction

please help, i’ll mark brainliest if you get it right! please please only answer if you know the answer though, don’t guess i’m taking a test and i can’t fail as it’s the last one before the quarter ends ( tomorrow ) id appreciate it!! thank youuu