Yes because a chemical reaction will change the weight and mass of an object but all the molecules did not dissapear. they were just formed into a different substance, wether that being a solid, liquid, or gas.
A theory fits all three of these descriptions. you can test, predict, and prove or disprove a theory. hope this helps!
<u><em>Answer: Water also dissolves non-ionic substances. ... Many substances do not dissolve in water and that is because they are non-polar and do not interact well with water molecules. A common example is oil and water. Oil contains molecules that are non-polar, thus they do not dissolve in water.</em></u>
Explanation:
Group 1 atoms only have one. Group 2 has 2 valence electrons, and so on.
