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Is water boiling in a kettle a chemical or physical change?
Boiling water in a kettle is a physical change. This is because the change is reversible, and it involves a phase transition from liquid to gas without changing the chemical makeup of water molecules.
Is toasting bread a chemical change or a physical change?
Toasting bread is a chemical change because the heat causes chemical reactions to occur within the bread, leading to a browning effect and changing the chemical composition of the bread.
When an electric currents is passed through water during the process of electrolysis?
It is a chemical change which manifests a physical effect of gas being evolved from a liquid. If the gases already existed and were just coming out of solution, it would be a physical change, but since it is a change from water molecules to oxygen and hydrogen molecules it is definitely a chemical change, not a physical one.
What are the good effects of physical change and chemical change?
Physical changes can include changes in size, shape, or state, while chemical changes involve the formation of new substances. Good effects of physical changes can include creating new materials like paper from wood pulp, while good effects of chemical changes include producing new medicines through chemical reactions. Both types of changes can be used to create new products and materials for various applications.
Why is tearing a piece of tin foil a physical change?
Tearing a piece of tin foil is a physical change because the substance's chemical composition remains the same before and after tearing. The appearance and physical structure of the tin foil may change, but no new substances are formed during the tearing process.
Does temperature have an effect on the rate at a physical or chemical change?
Yes, temperature have generally an important effect.
Is making ice cream a physical change?
no its a chemical change (i just did i project on making ice cream in meh class and one question was "is this a chemical or physical change? how do u know?"
Is ice melting at 0 degrees Celsius a chemical property?
No, the process of ice melting at 0 degrees Celsius is a physical change, not a chemical property. It involves a phase change from a solid to a liquid state without any change in the chemical composition of the ice.
What type of change will effect the state of matter but not its chemical makeup?
physical For A+ Students
Is hammering gold until it becomes flat a physical change or chemical change?
Pounding a gold coin into a different shape would probably not effect a chemical change. If, however, the pounding produced enough heat to meal the coin, some chemical change could take place.
Is dissolving a drink mix in water a physical change or a chemical change?
i think physical and chemical because for physical u r mixing it with the water. And for chemical I think it is because mixing drink mix with water is goes the effect the outcome chemical produced with both so it can also become a chemical change.....................
Is water boiling in a kettle a chemical or physical change?
Boiling water in a kettle is a physical change. This is because the change is reversible, and it involves a phase transition from liquid to gas without changing the chemical makeup of water molecules.
Is toasting bread a chemical change or a physical change?
Toasting bread is a chemical change because the heat causes chemical reactions to occur within the bread, leading to a browning effect and changing the chemical composition of the bread.
Is dissolving a drink mix in water a physical or chemical change?
chemical
Does a chemical change cause a substance to have new physical properties?
It affects it so ya Anyways, water becomes black and shines really bright when it is affected to magnesium and cesium bromide
When an electric currents is passed through water during the process of electrolysis?
It is a chemical change which manifests a physical effect of gas being evolved from a liquid. If the gases already existed and were just coming out of solution, it would be a physical change, but since it is a change from water molecules to oxygen and hydrogen molecules it is definitely a chemical change, not a physical one.
Is heating a bar magnet chemical or physical change?
Heating a bar magnet is a physical change because the magnet does not undergo a chemical reaction. The heat energy causes the atoms in the magnet to vibrate, which disrupts the alignment of the magnetic domains within the magnet, thereby reducing its magnetic strength.
