Answer:
new substances formed, as evidenced by the color changes and bubbles. Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.
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Conduct experiments to see which hall Bounce the higher and see how they could collect data
Depending on the strictness of your teacher you can name it as either of the following:
2-methyl-propane or iso-propane
Answer:
it could be 25degrees c... not sure
