Final answer:
The acronym 'C-GASP' stands for Color change, Gas produced, Aroma change, Solid formation, and Pressure/temperature change, indicating a chemical change. Chemical equations balance atoms, using symbols and formulas to denote reactants and products adhering to the law of conservation of mass.
Step-by-step explanation:
An acronym to help remember the signs of a chemical change could be 'C-GASP', which stands for Color change, Gas produced, Aroma change, Solid formation (precipitate), and Pressure/temperature change. These reflect observable signs that a chemical reaction may be occurring. When writing chemical equations, you should be familiar with the chemical symbols for the elements involved and capable of writing the formulas for different reactants and products. Chemical equations balance the number of each type of atom on both sides, representing the law of conservation of mass.
Some visual indicators of chemical reactions include unexpected color changes, light emitted, gas production not due to boiling, and formation of a solid precipitate within the mixture. Phase labels such as (s), (l), (g), and (aq) help denote the states of substances in the reaction, and special conditions like temperature may be indicated to provide full context for the equation.