It's physical
Dissolving sodium chloride in water is a physical change because the chemical composition of sodium chloride remains the same. The sodium and chloride ions are simply dispersed throughout the water, but they can still be recovered by evaporating the water.
u asking me for my answer and u can not give me one
When sodium hydrogen carbonate reacts with sodium carbonate, it will undergo a double displacement reaction forming sodium bicarbonate and sodium carbonate. The chemical equation is: NaHCO3 + Na2CO3 -> 2NaHCO3.
No, bleach changing the color of a shirt is a chemical change. The active ingredient in bleach, sodium hypochlorite, reacts with the dyes in the fabric, breaking them down and removing their color. This results in a permanent change in the chemical composition of the fabric.
Melting is a physical process; reaction with sodium is a chemical process.
The melting of ice is a physical change, as it changes from solid to liquid without altering its chemical composition. However, when the melted ice reacts with sodium to form a new compound, it is a chemical change because the chemical composition of the substances involved is altered.
chemical change
Yea it is a chemical change. The Sodium reacts with water in a chemical reaction in which the sodium displaces the hydrogen in the water, creating sodium oxide and hydrogen gas. The heat from the reaction ignites the hydrogen, which creates the explosion.
The reaction of sodium and water is considered to be a chemical change.
it would be a chemical property because is changes
When sodium melts, it undergoes a physical change. This is because the change in state from solid to liquid does not alter the chemical composition of the sodium itself. It remains as sodium in both the solid and liquid states.
It's physical
That is a chemical change. You are seeing a chemical reaction, where the sodium reacts with the water, forming sodium hydroxide and hydrogen gas.
Yes, melting sodium chloride is a physical change because it involves a change in state from a solid to a liquid without altering the chemical composition of the substance.
Dissolving sodium chloride in water is a physical change because the chemical composition of sodium chloride remains the same. The sodium and chloride ions are simply dispersed throughout the water, but they can still be recovered by evaporating the water.
This is a chemical change. When sodium reacts with water, it undergoes a chemical reaction to produce hydrogen gas and sodium hydroxide. The formation of new substances (sodium hydroxide) and the evolution of gas (hydrogen) indicate a chemical change rather than a physical one.