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potencial energy
Agnes Bogan
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What kind of change occurred when the matchstick?
potencial energy
If you put water in a freezer and it turns to ice what kind of change occured to the water?
A chemical change occurred
What can be evidence of a chemical reaction?
Generally, you know a chemical reaction has occured if there is a change in temperature, a change in color, a formation of a gas (bubbles), or any kind of flame.
A sheet of paper is torn in half Another sheet is burned A third sheet of paper is crumpled into a ball What kind of change has each sheet of paper undergone?
The torn sheet has undergone a physical change, the burned sheet has undergone a chemical change, and the crumpled sheet has undergone a physical change.
Fire is the change of what kind of energy to what kind of energy?
chemical potential energy (in the fuel being burned) to heat (thermal) energy and a little light energy.
When two white compounds are mixed in a solution a yellow solid forms What kind of reation has taken place?
A chemical reaction, because when the two substances were combined a color change and a precipitate formation both occured.
Which kind of pollution is a cause of air pollution?
Gasoline is burned by a car engine.
Why does glass break into many small pieces?
It depends on where the glass was found and what kind of weathering occured upon it.
What type of earthquake occured in the Fort Tejom earthquake in 1857?
The kind of quake was a right-lateral strike-slip
When burned sulfur nitrogen and carbon form what kind of compounds?
sulfites
What kind of books were burned and band by the Nazis?
Adeles books and Angels.
What kind of disc is purchased with data already burned on it?
a regular CD
