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What evidence of chemical change is visible when electricity is run through water?
Wiki User
∙ 13y ago
Water can be chemically changed, for instance, when an electric current is run through a sample, separating it into oxygen and hydrogen gas. Chemical change requires a chemical reaction, a process whereby the chemical properties of a substance are altered by a rearrangement of the atoms in the substance.
Added:
What is visible: it is gas bubles of hydrogen and oxygen coming out from the electrodes: O2 at the positive anode, H2 at the negative cathode.
Wiki User
∙ 13y ago
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What chemical changes provide evidence that a compound has formed?
Signs of chemical reactions may be: - Gas release - Formation of a precipitate - Change of color - Change of odor - Change of pH - Change of aspect - Visible formation of new compounds - A violent reaction with explosion or fire - Bubbling
Chemical sometimes used to make the specimen visible?
Stain
Can your breath becoming visible on a cold day be a chemical change?
Physical
The changes that are visible during a chemical reaction are signs that the?
If it is a true or false question it is false
Does no visible change mean no chemical reaction?
humm... i don think so
What is visible evidence of energy passing through the water?
A wave is visible evidence.
Can you give a sentence that has the word visible?
There was no visible evidence of tampering.
What visible evidence do you have about the sun?
The Sun itself.
Is a type of chemical when exposed to radiation emits visible light?
is a type of chemical when exposed to radiation emits visible light.
What is the visible discharge of electricity?
It's called LIGHTNING.
Which is visible evidence of energy passing through water?
A wave is a good example of energy passing through water, and it is clearly visible. The crest of the wave represents the point of peak energy content, according to Bernoulli.There are other ways that energy passes through water, but these are not clearly visible. For example, when water is heated it rises because of the reduced density compared to the colder water.
What is it called when a visible chemical haze into the atmosphere?
When a visible chemical haze is in the atmosphere it can be called a toxic cloud or nuclear fallout. This depends on the type of chemical that has been disbursed into the air.
What causes incandescent light bulbs to produce light?
The filament in the bulb has a high resistance to the flow of electricity. As electricity passes through it, the filament heats up and begins to glow, giving off the visible light you see.
When electricity passes through the thin wire in a lightbulbit is changed to what?
The electric energy is converted to heat. Part of this heat is then radiated off as visible light.
What are the visible elements?
Excepting some colorless gases all chemical elements are visible.
What is evidence how is direct evidence different from inderict evidence?
Direct evidence are visible noticable changes. Indirect evidence is when you might not see the action happen but you do notice the results
Why are lights off when the switch is open?
Lights are on when a circuit (a path for electricity to flow through) is complete, and light is produced when electricity passes through the bulb because the material is energized by electricity, causing it to give off electromagnetic radiation. Most of the EM radiation is in the form of visible light, but some is in infrared which is why light bulbs (especially incandescent) get hot. When you turn off a switch, the circuit is broken at the switch, so electricity does not flow through the bulb.
