I think it's D. helps to analyze the experiment because the purpose is to show how you got the conclusion that you did and how to keep track of any mistakes you might have made along the way.
Answer:
the first one
Explanation:
neutrons only have neutral charges and electrons are not heavier than protons
It is fluorescence
That means light reflecting
Answer:
The answer is most likely A. Definite proportions
Explanation:
The Law of Definite proportions states that a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation.
Look it up on the periodic table i attached below
im too lazy to type that all out im sorry but this is one of the easiest things you'll do in chemistry and if you tried you could actually finish all 5 of these in less than a minute instead of taking like 10 min to type 10 problems out separately and making 4 diff posts