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∙ 12y ago
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Is ice melting at 0 degrees Celsius a chemical property?
a physical change, it's chemical formula is still H2O
Is clouds forming in the sky a chemical or physical change?
Original answer is INCORRECT. Clouds forming in the sky is a physical change because a chemical change requires a change in the chemical composition of a material and the H2O, no matter a solid liquid or gas, is always H20.
When placed in H2O a sodium pellet catches on fire as hydrogen gas is liberated and sodium hydroxide forms chemical or physical change?
It is a Chemical change
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.
Is h20 a physical or chemical property?
H2O is not a property, it is a substance with physical and chemical properties.
Is dissolving NaCl in h2o a chemical change?
No, it is a physical change.
Is adding NaOH to HCL chemical or physical change?
It is a chemical change. NaCl + H2O
What is a chemecal change?
A chemical change (as opposed to a physical change) is when the actual chemical makeup of a substance changes. For example, Na+Cl->NaCl. A physical change on the other hand would be more along the lines of H2O(s)->H2O(l), (melting ice).
Is the freezing of H2O a chemical or physical change?
Freezing of H2O is a Physical Change.
Melting ice. Chemical or physical change?
Physical. H2O is still H2O.
Why is NaCl plus H2O a physical?
Dissolution of sodium chloride in water is a chemical process.
Is drying water chemical change or physical change?
Physical, it is still H2O
Is ice cube a physical change or chemical change?
It is a physical change because if the H2O
Is heat changing H2o to steam a physical or chemical change?
Physical change- it is still H2O, and can be changed back to water by cooling it.
Are icicles forming on the edge of the roof of physical or chemical change?
No it is not. The chemical composition is H2O before and after freezing.
Is removing salt by evaporating physical or chemical change?
This is a physical change because only the phases of the compounds change - the two compounds do no react. When evaporation occurs, the salt (NaCl) remains in its solid state while the water (H2O) becomes a gas.
Is evaporation physical or chemical change?
it is a physical change because it is not making a new substance. It is just changing the size/shape
