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Earn +20 ptsQ: Is a bomb exploding a physical change?
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Is boiling water for tea a chemical or physical change?
This is a physical change. Water can take on 3 forms, ice, gas, and liquid. These would be changes in state. Tearing, scratching, crushing, change in state, are all physical changes. Chemical changes must change the substance, not just the appearance. (i.e. Burning fire into ashes, fireworks exploding...)
What are examples of physical chemical and nuclear change in the same matter?
Physical change: Water freezing into ice Chemical change: Water being broken down into hydrogen and hydroxide ions after the addition of a pure metal.
Is painting a door a physical or chemical change?
Physical change of the paint, not the door.
When sandpaper smooths a piece of wood what kind of change is it?
this is a physical change
Is painting wood a physical or chemical change?
Its a physical change
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