The number of molecules decreases.
<span>Water is formed when two hydrogen atoms bond to an oxygen atom.
When a substance is made of two or more atoms like this, we call it AN ELEMENT
</span><span>Water is formed when two hydrogen atoms bond to an oxygen atom.
When a substance is made of two or more atoms like this, we call it A COMPOUND</span>
Answer:
The purpose of a science experiment is to prove or deny a hypothesis. One's experiment is not a failure if the results do not match the hypothesis. When the data does not support the hypothesis, record it as though it did.
L
![M = \frac{n}{V} \\ M = \frac{mol}{L} \\ or \\ M = \frac{mol}{ {dm}^{3} }](https://tex.z-dn.net/?f=M%20%3D%20%20%5Cfrac%7Bn%7D%7BV%7D%20%20%5C%5C%20M%20%3D%20%5Cfrac%7Bmol%7D%7BL%7D%20%20%5C%5C%20or%20%5C%5C%20M%20%3D%20%20%5Cfrac%7Bmol%7D%7B%20%7Bdm%7D%5E%7B3%7D%20%7D%20)
mol/dm³ is measure for molarity
If it's mechanical then it moves through matter