It states the fact, which we now know, that electrons are responsible for the chemical bonding. According to this theory, valency is the number of electrons present in the outermost energy shell of the atom. This energy shell is called valency shell.
Answer:
exothermic
Explanation:
boiling water releases heat and is therfor exothermic
condensing is the reverse reaction and is endothermic
D. infrared waves.
The infrared waves are hard to detect, so it is hard to detect where the soldiers are at night
Answer:
You are observing the appearance of products over time.
Explanation:
did the test
Answer: Microscope
Explanation: This is a kid answering :)
