Answer:
D. Visible Light
Explanation:
D is the right answer because visible light is perceived by humans as color and the rest aren't visible at all. For example, if you broke a bone and have to have an X-ray done, you can't see the x-rays. When you are heating something in the microwave, you can't see the waves. And when you are listening to the radio in the car, you also can't see the waves.
The percent by mass of potassium in K3Fe(CN)6 is 35.62%.
Slow down because liquids have less movement than gases
Answer:
Color change, formation of a precipitate, formation of a gas, odor change, temperature change.
