Answer:
D
Explanation:
I got it right whenever i chose D
Answer: The correct answer is B. He could add insulation to the aquarium so that it does not exchange energy with its surroundings.
Explanation-
Isolated system is a system in which there is no exchange of energy and mass. As per the question, heat is radiated from the aquarium. In order to make it an isolated system, insulating or diathermic cover is used over it so that it does not exchange energy with its surroundings.
Answer: C. the output of one is the input of the other
Explanation:
1 and 17 are highly reactive bc they are almost full or not full at all. they need there last shell to be full in order to be happy, or not reactive. 18 has the noble gases which are not reactive at all bc they have a full valence shell and dont need any other electrons.
Answer:
snsngdsnbfd
Explanation:
gbfnvddddddddddddcbcvgbngng
