What are four ways you can tell to see a chemical reaction?

Answer 1

1. Presence of Preciptate 2. Color Change 3. Smell Change 4. Temperature change Basically, look for: Visual Indicators (precipitate, colour changes, fizzing/bubbling) Smell, Touch (temperature increase/decrease)

Answer 2

color

phase of material (did it change from a solid to an oil, etc)

you can measure heat transfer (exothermic or endothermic)

monitoring by NMR

monitoring by IR

monitoring by TLC

there are numerous ways

Answer 3

1) color change

2) formation of a precipitate

3) gas evolution

4) light emission

5) heat evolution

Answer 4

Heat, bubbles(not a state change), color change, left behind material or extra.

Answer 5

1. precipitate

2. color change

3. formation of gas

4. temperature change

Answer 6

1. Precipitation forms
2. Production of bubbles
3. Temperature change
4. Color change

Answer 7

there is

1. bubbling (fizzing),
2. increased heat,
3. color distortion, and
4. increased bubbling noise or audio

Answer 8

1. If the substance is not capable of being turned back into its original form.

2. Heat

3. Smell

4. Precipitation (The change of the substance into a liquid or solid.)

Answer 9

City Girls Love Their Phones so you can remember these ways.(color change,makes gas,makes light,temperature change,and precitation