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Is potassium in fireworks is very reactive a chemical or physical?
The reactivity of potassium in fireworks is a chemical property. This property describes how potassium interacts with other substances, such as oxygen, during combustion, resulting in a chemical reaction that produces light and sound. Physical properties, on the other hand, pertain to characteristics that do not change the substance's chemical identity, such as color or melting point. Therefore, potassium's reactivity is classified as a chemical property.
Is density chemical change or physical change?
It is a physical change.Density is not a chemical property. Instead, it is a physical property.
What is the diffrenece between a physical change and a chemical change?
Physical change is a change in the structure. Chemical change is a change in the composition. Melting is a physical change. Complexing is a chemical change.
Is pounded metal a physical or chemical change?
Physical change
Is burning a fire a physical or chemical change?
Burning is a chemical change.
Sodium and potassium reacts vioently with water is that a chemical or physical change?
chemical change
Is heating potassium chloride crystals a physical or chemical change?
Heating potassium chloride crystals is a physical change because it only affects the physical state of the substance (solid to liquid) without changing its chemical composition.
Is Heating potassium chlorate a chemical or physical change?
Heating anything to a visible change is ALWAYS a chemical change
Adding potassium iodide to lead nitrate is it physical or chemical change?
This is a chemical change because a new compound, potassium nitrate, is formed through a chemical reaction between the potassium iodide and lead nitrate. Physical changes do not involve the formation of new substances.
Is heating potassium bicarbonate a chemical or physical change?
Heating potassium bicarbonate is a chemical change because it causes a decomposition reaction. This results in the formation of new substances (potassium carbonate, water, and carbon dioxide) that have different chemical properties than the original compound.
Is Potassium chloride decomposes to potassium chloride and oxygen gas is a physical or chemical change?
Chemical
Is potassium cloride dissolving in water a chemical change?
Potassium metal does not dissolve in water, it is so reactive that it rips water molecules apart releasing hydrogen gas and combining with the remaining hydroxyl group to form potassium hydroxide (potash lye) which then dissolves in the water. This chemical reaction releases so much heat that it ignites the hydrogen gas that was emitted which produces water vapor/steam and a light purple flame (caused by excited potassium ions).
Do potassium iodide and water create chemical reaction?
No, only dissolving of KI but that is a physical change.
Chemical reaction for potassium nitride?
It reacts with water to produce toxic Ammonia
Is stapling an envelope a physical change or chemical?
A physical change
Is hydrochloric acid reacts with potassium hydroxide to produce a saltwater and heat a physical or chemical change?
The reaction of hydrochloric acid with potassium hydroxide is a chemical change because new substances (salt and water) are formed that have different chemical properties than the original reactants. The release of heat is an indicator of a chemical reaction taking place.
Potassium cholrate decomposes to potassium chloride and oxygen gas is it a chemical change?
It is a chemical change. 2KClO3 ----> 2KCl + 3O2
