During a chemical change, the composition of matter always changes. Four possible clues to chemical change include a transfer of energy, a change in color, the production of a gas, or the formation of a precipitate.
The signs of a chemical change include color change, the production of an odor, a change in temperature, the formation of bubbles, and the formation of a precipitate. Hope this helps! ;)
The answer is true because this is essential when putting
them in formulas so that the worksheet may be able to provide the values or
find the values that are going to be calculated in the cell that has been
provided.
