A student was asked to demonstrate a chemical change to the class. A candle was lit and it burned the student explain that the shorter length was evidence of chemical change. This explanation is not complete. The student should also include which of the following in his explanation? A. Color change
B. Solid formation
C. Heat giving off
D. Keep taking in

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Using the thermodynamic information in the aleks data tab, calculate the standard reaction free energy of the following chemical reaction: →+p4o10s6h2ol4h3po4s round your answer to zero decimal places.

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?