0
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.
What else can I help you with?
Is using scissors to cut paper a physical or chemical change?
It is a physical change, as the chemical integrity remains the same.
When you roast a marshmallow is it a physical change or a chemical change?
Roasting a marshmallow is a physical change, not a chemical change. The marshmallow undergoes a change in its physical state as it is heated, but its chemical composition remains the same.
Is it a physical or chemical change when a substance changes form but it remains the same substance?
it would be physical change because physical change is when the substance stays the same
Is bending a metal rod chemical or physical change?
Physical Change, the metal has the same chemical structure and only the shape of the bar has changed
Is cutting paper a chemical?
No, cutting paper is a physical change, not a chemical change. The paper's chemical composition remains the same before and after cutting; only its physical shape is altered.
Can matter undergo a phyical and chemical change at the same time?
Yes, matter can undergo both physical and chemical changes simultaneously. For example, when a candle burns, the wax undergoes both a physical change (melting) and a chemical change (combustion) at the same time.
Is using scissors to cut paper a physical or chemical change?
It is a physical change, as the chemical integrity remains the same.
Is peeling an apple a physical or chemical change?
it is a chemical change
Is liquid tree resin hardening into amber physical or chemical change?
Physical... chemically, it's still the same substance,
Does physical and mechanical change the same as physical and chemical change?
no its not true
When you roast a marshmallow is it a physical change or a chemical change?
Roasting a marshmallow is a physical change, not a chemical change. The marshmallow undergoes a change in its physical state as it is heated, but its chemical composition remains the same.
Is it a physical or chemical change when a substance changes form but it remains the same substance?
it would be physical change because physical change is when the substance stays the same
Difference between chemical and physical change?
A chemical change is when the chemical properties of a substance changes and a physical change is when the chemical properties stay the same but the physical properties (shape, temperature etc...)
Is cracking eggs a physical or a chemical change?
physical change since the egg and the contents inside do not become a new substance they remain the same only thing is that the shape or the appearance or the physical structure changes that is why it is called as a physical change not chemical because its internal composition is the same
Is squeezing a lemon a physical or chemical change?
It's a physical change why are some people f$#@%ing stupid and saying a chemical change??
What is true for a physical change as well as a chemical change?
A chemical has changed appearance in both a physical and chemical change. It cannot stay the same or it wouldn't have changed.
Is evaporation considered a chemical or physical change?
Evaporation is considered to be a physical change. The chemical nature and identity of the evaporated material is the SAME as that of the liquid.
