I think the correct answer is option A. Pure substances can be considered as compounds. Compounds are molecules made of atoms from different elements held together by chemical bonds. Pure substances are these compounds that exist alone no other substance.
Because the reactants react with each other and chemically react to produce a different product like with fire when it reacts with the wood it burns and the product left behind is a new different substance from the reactants in this case the product is ash
Answer: D. Sublimation
Explanation: I just took the test.
A as the lower temperature in Celsius corresponds to a lower Kelvin temperature thus reducing movement
