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What is a substance that speeds up a chemical reaction without permanently being changed itself?
A catalyst is a substance that speeds up a chemical reaction by lowering the activation energy needed for the reaction to occur, without being consumed or permanently altered in the process.
Physical properties are altered but the substance remains the same kind of matter?
Physical properties are characteristics that can be observed or measured without changing the composition of the substance. When physical properties are altered, such as when a substance changes state (solid to liquid), the basic chemical composition remains the same, indicating that it is still the same kind of matter.
Is cutting your hair a reversible or irreversible physical change?
Cutting your hair is a reversible physical change because it can grow back over time. The structure of the hair is not permanently altered by cutting it.
A substance that undergoes a chemical change is still the same substance after the change?
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what is the chemical change when a substance loses its luster?
When a substance loses its luster, it typically means that a protective outer layer has been removed or altered, rather than a chemical change occurring. This can result from physical processes like scratches or oxidation that disrupt the surface, causing light to be reflected differently and the substance to appear dull.
When an organism's DNA is permanently altered we say that it?
When an organism's DNA is permanently altered, we say that it
What is a substance that speeds up a chemical reaction without permanently being changed itself?
A catalyst is a substance that speeds up a chemical reaction by lowering the activation energy needed for the reaction to occur, without being consumed or permanently altered in the process.
What are the effects of adding heat and are they reversible?
Adding heat to a substance can cause it to change in various ways, such as melting, boiling, or burning. These changes are usually reversible if the substance is not permanently altered by the heat.
What is a vibration that passes through a substance without permanently changing the substance?
A wave is a vibration that passes through a substance without permanently changing the substance. Waves transfer energy without displacing matter permanently. Examples include sound waves and light waves.
Are enzymes permanently change in the chemical reactions they are involved in?
No. That is one of the definitions of an enzyme. It is NOT altered in the reaction.
What is a decommissioned gun?
A decommissioned weapon is one that has been PERMANENTLY altered so that it can never again, be fired.
Physical Change?
Changes of the matter that do not change the composition of the substance.
Can fingerprints be permanently destroyed?
No, fingerprints cannot be permanently destroyed. While they can be altered through injuries or skin conditions, the patterns remain unique to each individual for their entire life.
A change duing which the basic composition of the substance is not altered is a?
is a physical change
A change during which the basic composition of the substance is not altered is?
Physical Change
A substance that enters into and is altered through a chemical change?
These substances are called reactants.
A substance that speeds up a chemical reaction without being permanently?
catalyst
