Hey whats the question? I just did this the other day but what do you want the answer for like how?
<u>The answer is B. Gas molecules are in Constant Motion.</u>
This is supported by the Kinetic Theory of Gases, which it states that the gas particles are in constant random motion, colliding with the container that it's in.
Okay so just add all of them up the fine the x and the y and d the times that by the size of yiurn four head
Burning a magnesium ribbon in the air is an addition reaction while heating potassium manganate 7 is a decomposition reaction.
<h3>Addition and decomposition reactions</h3>
Magnesium burns in air to produce magnesium oxide as follows:

Potassium manganate 7 burns to produce multiple products as follows:

Thus, the MgO will be heavier than Mg. On the other hand,
will be less heavy than
.
More on reactions can be found here: brainly.com/question/17434463
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Here are the answers. A,A,A,C,A,C.
I hope this helps!