SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Changes that do not affect the identity of the substance
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A property that depends on the type of matter in a sample, not the amount of matter.
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A property that depends on the amount of matter in a sample.
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When one or more substances are converted into different substances
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Detailed explanation-1: -A Physical change is a change that does not change the identity of the substance. for example, water changes from ice to liquid or from liquid to vapor its identity is still the same.
Detailed explanation-2: -A physical change is a change to a sample of matter in which some properties of the material change, but the identity of the matter does not. When liquid water is heated, it changes to water vapor. However, even though the physical properties have changed, the molecules are exactly the same as before.
Detailed explanation-3: -Physical changes impact a substance’s shape and not its chemical content.
Detailed explanation-4: -A physical change is any change in a substance’s form that does not change its chemical makeup. Examples of physical changes are breaking a stick or melting ice. A chemical change, or chemical reaction, occurs when atoms of a substance are rearranged, and the bonds between the atoms are broken or formed.
Detailed explanation-5: -A change of one substance in a material to a different substance is a chemical change.