Determine if each pair of molecules is best described as a pair of enantiomers, a pair of diastereomers, a pair of identical chiral molecules, two of the same meso molecule, constitutional isomers, or unrelated. Select the correct answer from the dropdown menus. The molecules in pair A are [ Select ] . The molecules in pair B are [ Select ] . The molecules in pair C are [ Select ] . The molecules in pair D are [ Select ] . The molecules in pair E are [ Select ] . The molecules in pair F are [ Select ] . The molecules in pair G are [ Select ] . The molecules in pair H are

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

explanation: chemical change is the change in which chemical composition of the substance changes. physical change is the change in which there is no change in chemical composition.

chemical changes are accompanied by following changes:

a) precipitate formation

b) energy is released or absorbed

c) formation of bubbles

d) change in color

as it is given that the red color has disappeared and there is production of gas, it means the red substance has undergone a chemical change.

e

i'm assuming that it's c.) red bank..

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

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