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Is it a physical or chemical change. Acids produced by bacteria in plaque cause teeth to decay?
Dpatel205
Chemical change
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∙ 13y ago
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When bacteria convert milk to yogurt is it a physical or chemical change?
CHEMICAL
Are the changes produced by electrolysis chemical or physical in nature?
The changes produced by electrolysis are chemical.
Is a new substance is produced a chemical or a physical change?
That's a chemical change because the structure of the atoms are changing. Chemical features can only be viewed through chemical change, by the way.
How do you know if somethings chemical change or physical change?
In a chemical change, a new substance is produced. For example, if something is burnt, it is no longer what it originally was and is, therefore, a chemical change. A physical change is a change in appearance: shape, quantity, and form of matter (solid, liquid, gas).
Is a burning wood into ashes and smoke a physical or chemical change?
Burning wood is a chemical change - although, like most chemical changes it is accompanied by a physical change. Usually we reserve the term physical changes for things like erosion, melting, or evaporation where no change in composition occurs.
Sunlight produced into stored energy physical or chemical change?
chemical change
When bacteria convert milk to yogurt is it a physical or chemical change?
CHEMICAL
Are the changes produced by electrolysis chemical or physical in nature?
The changes produced by electrolysis are chemical.
When a substance undergoes a phase change what occurs a particle change a chemical change a new substance is formed a physical change?
When a substance changes phase, this is a physical changerather than a chemical change. When water freezes to become ice, or when ice melts to become water, its all physical.
Is mixing two substances and light is produced a chemical or physical change?
chemical
Are pop cans a physical or chemical change?
Pop cans are produced by physical processes.
Is cooking a turkey a chemical or physical change?
Both. Chemical change is the grems and bacteria on the raw turkey dissolving. The physical change obviously when the turkey is cooked and no longer raw.
Is a bomb exploding a physical change?
An atomic bomb uses fission-- the splitting of atoms. It is purely a physical change, at first. Any gases produced in the air surrounding the explosion (which occurs before it touches the ground), along with the intense heat produced, causes chemical changes in the air.
Is giving off light a physical or chemical change?
I would think it to be a Physical Change. Not chemical.
Is hammering gold until it becomes flat a physical change or chemical change?
Pounding a gold coin into a different shape would probably not effect a chemical change. If, however, the pounding produced enough heat to meal the coin, some chemical change could take place.
Is reacts with acid to form H2 a chemical or physical properties?
Chemical. If a new substance is produced it is a chemical change.
What is produced by a chemical change?
Unlike a physical change, a chemical change produces new substances with properties different from those of the original substances.
