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What else can I help you with?
Is reactivity with water a physical or chemical change?
This is a physical change. The bubbles are pockets of steam which is the same chemical as water, just in a different state.
Is forming a mixture a physical change or a chemical change?
Physical there still the same mixture but blended together not a totally different substance.
Is fragrance of a flower a chemical change?
No, the fragrance of a flower is a physical change, not a chemical change. The scent is a result of volatile compounds evaporating from the flower, but the chemical composition of the flower itself remains the same.
Is erosion a physical change or a chemical change?
This is a physical change because wind and erosion are part of the physical category. Chemical change is where things happen involving actual chemicals . Wether the chemicals are from nature or not , Chemicals are chemicals. hope this helped ;] ~Lily
Can physical and chemical change happen to the same object at the same time?
yes,sometimes both changes occur together. For example, when a person eats chocolate and then digests it a physical and a chemical change takes place. When the person chews the chocolate and breaks it into smaller pieces - it is a physical change. No new substances have been formed yet.Once acted upon by saliva and other digestive juices, the chocolate is broken down into other simpler substances, which can be absorbed by the blood. This is a chemical change.
Are there instances that physical and chemical happen simultaneously?
yes burnig of candle chewing of food
Is a fire a physical or chemical change?
A fire is a chemical change due to the irreversible changes that happen.
What will happen if there is no physical and chemical change?
The system remain unchanged.
Is reactivity with water a physical or chemical change?
This is a physical change. The bubbles are pockets of steam which is the same chemical as water, just in a different state.
What is one thing that will happen in order to signify a chemical change?
If I understand your question correctly, it would be a change in composition that signifies a chemical change. Physical changes are only appearance, while a chemical change alters the substances' entire composition.
Is forming a mixture a physical change or a chemical change?
Physical there still the same mixture but blended together not a totally different substance.
Is it possible to have a chemical and physical change at the same time?
When gunpowder explodes, it changes from a solid to a gas. That is why a gun works. Put a stick of wood on the fire. Watch the carbon burn as it turns to carbon dioxide. Feel it give off heat. Put gasoline in your car. When the gasoline combines with air it burns and turns to water and carbon dioxide. It also turns to hot gas and pushes your car.
Is cutting paper hearts from red paper a phrsical change or a chemical change?
it is a physical change because you are doing something physical to it an example of a chemical change would be making an explosion the difference between physical and chemical changes is for physical your doing it to something that has physical properties like shaping something or cutting something maybe dealing with a sold or liquid but in a chemical change you are making something new you could say cutting it is physical but once you get the heart you have created something new with the paper a heart so that could be a chemical change because chemical and physical can happen twice even if your doing one task hope that answered your question
What has to happen for a chemical change to happen?
At least 2 of the reactants must change their chemical formula.
How are physical and chemical changes different in two ways?
a physical change can be reversed but a chemical changes is not. you can all tell the different from a physical and chemical change by seeing if the color or if the substances is still in it normal element and it a chemical change if it has been change to a new substances like a burn paper change to Ashes. It is all most a physical change but it can not be reversed back.
If an ice cube is placed in a pot that is heated what will happen after it has melted is it a chemical or physical change?
When ice melts and becomes a liquid it is a physical change. When the liquid boils and becomes gaseous it is a physical change. It is a chemical change when the molecular structure has been changed in some way, here it has not.
Is fragrance of a flower a chemical change?
No, the fragrance of a flower is a physical change, not a chemical change. The scent is a result of volatile compounds evaporating from the flower, but the chemical composition of the flower itself remains the same.
