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Is dissolution of sulphar in carbon disulfide a chemical change?
No, dissolving solutes in a solvent is always a physical change!
Is less gasoline that remains in the gas tank as carbon dioxide physical change or chemical change?
The conversion of gasoline to carbon dioxide when it is burned is a chemical change, as it involves the breaking and forming of chemical bonds. This process releases energy in the form of heat and light.
Is it a chemical or physical change when energy in food molecules is transferred into molecules of ATP?
It is a chemical change. The process involves breaking down the chemical bonds in food molecules to release energy, which is then used to synthesize ATP molecules through chemical reactions within the body.
Is dissolving carbon dioxide in water a physical or chemical change?
It's a physical change because carbon dioxide still has it's same properties. It is not changed.Added:Even if you dissolve it in water it is still there thus making it a physical change and not a chemical change. If it were a chemical change then it would be changed for example, fire or burning things like logs and so forth. Dissolving something in water is not changing it completely it only has a minor change in how you see it, thus it is a physical change.The only 'chemical' change might be considered to be the protolysis of water being slightly enhanced by the hydrogen bonding to carbon dioxide molecules. But that is more a (very weak) 'chemical' change of water molecules rather than of CO2 molecules:(CO2)aq + 2 (H2O)l > (Cl-)aq + (H3O+)aq
Is snowflakes melting a chemical change?
Melting snowflakes is a physical change, not a chemical change. The water molecules in the snowflake remain the same chemical composition before and after melting, they just change from a solid to a liquid state.
Is dissolution of sulphar in carbon disulfide a chemical change?
No, dissolving solutes in a solvent is always a physical change!
Is dissolving powder into water a chemical change?
No, dissolving powder into water is a physical change, not a chemical change. The powder molecules are still the same chemical compounds as they were before dissolving, just dispersed in the water molecules.
Is less gasoline that remains in the gas tank as carbon dioxide physical change or chemical change?
The conversion of gasoline to carbon dioxide when it is burned is a chemical change, as it involves the breaking and forming of chemical bonds. This process releases energy in the form of heat and light.
When carbon dioxide in air converts to more complex molecules by plants during photosynthesis is that a physical change?
No, the process of carbon dioxide being converted into more complex molecules by plants during photosynthesis is a chemical change, not a physical change. Chemical changes involve the formation of new substances with different chemical properties, whereas physical changes only affect the physical state of a substance without altering its chemical composition.
Is burned ethanol a physical or chemical change?
Burning anything (a liquid or a solid) is a chemical change and the reaction is known as a combustion reaction.
Why charring of sugar is a chemical change OR A physical change?
Charring of sugar is a chemical change because it involves the chemical decomposition of the sugar molecules due to the application of heat, leading to the formation of new substances like carbon. This change is irreversible and involves the breaking and rearranging of chemical bonds.
What does chemical change produce?
After a chemical change new molecules are obtained.
Is the breaking down of molecules a chemical or physical change?
It is a chemical change.
Is it a chemical or physical change when energy in food molecules is transferred into molecules of ATP?
It is a chemical change. The process involves breaking down the chemical bonds in food molecules to release energy, which is then used to synthesize ATP molecules through chemical reactions within the body.
Is combining carbon dioxide and water to make sugar a physical change?
Combining carbon dioxide and water is a chemical change, not a physical change, but it doesn't make sugar. Carbon dioxide and water makes carbonic acid. CO2 + H2O <--> H2CO3-->H+ + HCO3-
Is dissolving carbon dioxide in water a physical or chemical change?
It's a physical change because carbon dioxide still has it's same properties. It is not changed.Added:Even if you dissolve it in water it is still there thus making it a physical change and not a chemical change. If it were a chemical change then it would be changed for example, fire or burning things like logs and so forth. Dissolving something in water is not changing it completely it only has a minor change in how you see it, thus it is a physical change.The only 'chemical' change might be considered to be the protolysis of water being slightly enhanced by the hydrogen bonding to carbon dioxide molecules. But that is more a (very weak) 'chemical' change of water molecules rather than of CO2 molecules:(CO2)aq + 2 (H2O)l > (Cl-)aq + (H3O+)aq
Is snowflakes melting a chemical change?
Melting snowflakes is a physical change, not a chemical change. The water molecules in the snowflake remain the same chemical composition before and after melting, they just change from a solid to a liquid state.
