0
The reaction of sodium and water is considered to be a chemical change.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
When sodium reacts with water is it a chemical or a physical change?
It is a chemical reaction for not only has the state changed of NaOH, but the identity of the substances have also changed.NaOH + H2O --> Na+ + OH-The "H2O" is not a reactant. It's actually supposed to go over the arrow. Sorry.Nonetheless, the dissolution of NaOH will increase the Hydroxide concentration, thus making it more basic. It will not change the identity of H2O.
Why is adding silver nitrate to salt water a chemical change?
Silver nitrate and sodium chloride react when ins solution to form aqueous sodium nitrate and solid silver chloride, which precipitates out. These are two new substances, meaning that the chemical identities of what went in have changed.
Is Sodium hydroxide dissolving in water a chemical or physical change?
physical
Is the reaction between Sodium acetate and water a chemical reaction?
No, it is simply the water dissolving the sodium acetate, which is a physical change. There is a physical change when you introduce a seed crystal to the sodium acetate as the bonds in the chemical become different to form a solid. By adding water, you are just dissolving it and then allowing it to become supersaturated through heating.
Does hexane and bromine water and sodium hydroxide solution react?
If this is supposed to be an alkene test, then no, hexane will not react with bromine water to take away its color as it is an alkane and therefore contains no double bonds. But bromine water will react with sodium hydroxide; bromine water contains either HCl or H2SO4, both of which will of course react with sodium hydroxide. In addition, I believe (from some experiments like this that I've done recently) that sodium hydroxide will actually react with the free bromine in the bromine water, as evidenced by the change in color from the orange-ish color of bromine water to a pale yellow.
Is sodium and potassium react violently with water a chemical change?
Sodium and potassium reacting violently with water is a chemical reaction, causing a chemical change.
Is mixing sodium bicarbonate and hydrochloric acid a chemical change?
Yes, They react to form sodium chloride, carbon dioxide, and water.
What is the chemical change of water?
The chemical reaction of water with sodium is a chemical change.
When sodium is put into waterit react forming sodium hydroxide and hydrogen is this physical change or chemical change?
That's most definitely a chemical change, because new forms of matter are produced. Before the reaction, you had pure sodium and water. After the reaction (which is very explosive by the way), you have sodium hydroxide and hydrogen gas.
When sodium reacts with water is it a chemical or a physical change?
It is a chemical reaction for not only has the state changed of NaOH, but the identity of the substances have also changed.NaOH + H2O --> Na+ + OH-The "H2O" is not a reactant. It's actually supposed to go over the arrow. Sorry.Nonetheless, the dissolution of NaOH will increase the Hydroxide concentration, thus making it more basic. It will not change the identity of H2O.
What happens when you react sodium with chloride?
The elemental sodium (Na) does not react, the sodium cation ( Na+ ) combines with chloride anion ( Cl- ) when water is evaporated to form table salt (NaCl), but this is NOT considered to be a chemical reaction, it is a pure physical change in the state of matter (solution -> solid + water).
Is adding sodium to water a 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.
Is H2o a chemical change?
H2O is the compound water. Forming it from other things would be a chemical change. Using it to react with other substances and form new substances would also be a chemical change. But water just sitting there is not a chemical change. EX: hydrogen(gas) + oxygen(gas) forms water (chemical change) Water + sodium forms sodium hydroxide and hydrogen (gas) (chemical change) BUT water + sugar makes a sugar water solution (not a chemical change) nothing new was made, the sugar just dissolved and the water is still water
Sodium and potassium reacts vioently with water is that a chemical or physical change?
chemical change
If sodium bicarbonate reacts with water what is the result chemically?
It does not react with water, but simply dissolves in it - a physical, not chemical, reaction.
Is react with water is chemical change or property?
A reaction with water is a chemical process (or change); but reactivity is a property of a substance.
Is sodium catching on fire in water a chemical or physical change?
chemical
