Which of the following reactions is exothermic?
- a. light * 600, + 6h20 -
c. h20. + 602
c. 2hgo (s) + heat -
2hg (1 +0. (9)
d. none of the reactions are exothermic.
b. mercury oxide plus heat yields mercury
and oxygen

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Right anwser gets marked brainliest newton's discovery concerning how fast an object will change speed is the: 1st law 2nd law 3rd law universal gravitation

Adepositional also feature that forms where a stream enters a lake or an ocean is a