Unit Activity: Chemical Reactions Part B Decide which molecules in the simulation will represent the substances from the actual reaction. Include a strategy to deal with the difference in structure between the actual reaction N2 + 3H2 = 2NH3 and the simulated reaction. Not all molecules need to be used.

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explanation:

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