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The mass can increase.
The particles can arrange in different ways.
The mass can decrease.
The atoms can bond to different atoms.
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∙ 8y ago
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Which physical and chemical change occur when LPG comes out of the cylinder and burns?
nothing
What is the differences of a chemical change and a physical change?
Chemical changes occur when the elements, their valences, and their amounts change. 4H + O2 => 2H2O is a chemical change because the valences change from unfilled to shared. Physical changes occur when the material phase changes. In fact, in 4H + O2 => 2H2O we also have a physical change...from gas to liquid water (in most cases). NOTE: That there was a chemical change here is incidental, the phase change is the physical change.
Does physical change occur when epsom salt is dissolved?
Yes. The way I think about it is if you can change it back (in this case, you could filter the epsom salt out, or evaporate the water, drying it) then it is a physical change.
What happens when a physical reaction occurs?
For example, the change in the state of matter.
Does a physical change occur when a peach spoils?
No its chemicalAll decompisition is a chemical change. There is no going back to the unrotten fruit
Does physical change occur when energy is added or removed?
Physical Change
What is a physical verus a chemical change?
A physical change occur when the molecular structure of chemicals are not changed.A chemical change occur when the molecular structure of chemicals is changed.Grinding is physical, neutralization of an acid is chemical.
Differenting physical and chemical change?
A physical change occur when the molecular structure of chemicals are not changed.A chemical change occur when the molecular structure of chemicals is changed.Grinding is physical, neutralization of an acid is chemical.
Did the Grand Canyon occur by physical change or chemical change?
both
What is the different between a physical and a chemical change?
A physical change occur when the molecular structure of chemicals are not changed.A chemical change occur when the molecular structure of chemicals is changed.Grinding is physical, neutralization of an acid is chemical.
How chemical and physical change?
A physical change occur when the molecular structure of chemicals are not changed.A chemical change occur when the molecular structure of chemicals is changed.
What is the difference between a chemical change and a physical change in a reaction?
A physical change occur when the molecular structure of chemicals are not changed.A chemical change occur when the molecular structure of chemicals is changed.
Is vinegar and salt mixed a chemical or physical change?
This is a physical change because any reaction occur.
When the banana, berries, water, and hot dog are blended, does a physical or chemical change occur?
both physical and chemical change occur
Where does physical change in digestion occur?
it happens nowere in your body
What type of change occur when sugar dissolved in water?
physical
What should occur when I bend an iron nail?
It is a physical change.
