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What evidence of a chemical reaction might you see in dropping an alka-seltzer tablet into water?
Wiki User
∙ 12y ago
Chemical, bubbles of gas are fromed, it fizzes. --> Yes that is a chemical change that occurs, but the dissolving of the tablet is considered a physical change, therefore a physical and a chemical change occurs when water and an alka-seltzer tablet combine,
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoSolvation. That is, it's not a chemical reaction, the tablet simply dissolves.
The chemical reaction that causes the bubbling comes from two different compounds within the Alka-Seltzer tablet itself. The compounds do not react with each other until they dissolve in water.
NaHCO3 + HCl ==> NaCl + CO2 + H20 = reaction with HCl
it will basically produce an acid base reaction..
Wiki User
∙ 12y agoEvolution of a gas.
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What evidence of a chemical reaction might you see by dropping an alka seltzer in water?
its a chemical reaction becase once the alka seltzer melts you cant take it out and put it back together
Is there evidence of a chemical reaction when bubbles form on heated water?
Yes there is a chemical reaction called 'Effervecense'.
How is a precipitate evidence for a chemical reaction?
It is a chemical reaction because a new solution is formed when a precipitate is formed.
If burning sugar is a chemical reaction can you give me an evidence?
Burning is a chemical reaction; sugar is transformed in carbon dioxide and water.
What evidence of a chemical reaction is shown in the photo?
lol what photo
What evidence of a chemical reaction might you see dropping an alka-seltzer tablet into a glass of water?
it will dissolve
What evidence of a chemical reaction might you see by dropping an alka seltzer in water?
its a chemical reaction becase once the alka seltzer melts you cant take it out and put it back together
What changes gives NO evidence that a chemical reaction has taken place?
Physical changes give no evidence that a chemical reaction has taken place, because no chemical reaction has taken place.
What evidence of chemical reaction would be seen when burning a match?
Burning is a chemical reaction (oxidation).
Is turning a penny gold a chemical or physical reaction?
Anything else then dropping it in molten gold is chemical
Is there evidence of a chemical reaction when bubbles form on heated water?
Yes there is a chemical reaction called 'Effervecense'.
How is a precipitate evidence for a chemical reaction?
It is a chemical reaction because a new solution is formed when a precipitate is formed.
Why does a change in temperature indicate that a chemical reaction may occur?
Because a chemical reaction has different sign's. And heat is one. But if the temperature is dropping then it is not going through a chemical change.
What observations give evidence that chemical reaction has happen?
No
If burning sugar is a chemical reaction can you give me an evidence?
Burning is a chemical reaction; sugar is transformed in carbon dioxide and water.
What evidence of a chemical reaction is shown in the photo?
lol what photo
What evidence is there to show that a chemical reaction has taken place when an egg is cooked?
The change in color indicates that a chemical reaction has taken place.
