Answer: Hmmmm. Let's see...
Explanation: A pebble has the same density and a boulder when it rolls down a hill. The pebble will most-likely roll down very fast which can make it dense.
<h2 /><h2>I really hope this helped! like at all...</h2><h2>Truthfully, I don't know a lot of this type of stuff.. But worth a shot, right?</h2>
The answer is >>>>
C) decomposing
How does the law of conservation of mass apply to this reaction: C2H4 + O2 → H2O + CO2?
The above model is a good representation of a molecule because it clearly displays the atoms (white and black circles) and the chemical bond sticks that are present in the atom.
A drawback of the above model is that it does not show clearly the various freedom of movement that may be found in molecules nor does it show the movement of electrons.
The model can be improved by designing it to have relative freedom between the bond to indicate the freedom of movement of bonds.
<h3>What are scientific models?</h3>
Scientific models are structures that are used to represent or explain scientific concepts.
Scientific models may be pictures, three-dimensional objects, illustrations., etc.
Scientists use different models to represent concepts or ideas. For example, the planetary model of the atom, and the ball and stick model of molecules.
The ball and stick model shows the atoms and the bonds that are present in the compound.
Learn more about models at: brainly.com/question/18603376
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