Rank the following solutions from lowest to highest vapor pressure. 1 = highest vapor pressure; 3 = lowest vapor pressure 30.0 g of glucose (c6h12o6) in 100.0 ml of water

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

i'm wiling to try and you : )

50.23 i believe is correct but don't quote me on that.