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

Hin t in the section titled, "what can be done? " of "battling the digital jolly roger," what is one of the problems caused by piracy that the author lists? he section titled, "what can be done? " of "battling the digital jolly roger," what is one of the problems caused by piracy that the author lists? ow does the writer's point of view in "the completely free market" affect the credibility of the article? a. it's written in the third person, which allows the author to examine all sides of the debate. b. since it's written in the first person, it doesn't objectively present all sides of the argument. c. since it's written in the second person, it puts the reader in the writer's position, and gives the reader more to consider from this perspective. d. it's written in the first person, but is conducted as an interview with several different sources, providing a full-circle debate.

Nazis who forced jews to live in ghettos also forced them to

Why did stalin want control of eastern europe after ww2?