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Is the odor of gasoline a chemical property?
No, the odor of gasoline is a physical property, not a chemical property. Chemical properties describe how a substance interacts with other substances to form new substances, while physical properties describe observable characteristics like color, odor, and texture.
The density of an substance varies with samples of that substance?
Yes, the density of a substance can vary depending on factors such as temperature, pressure, and the purity of the material. Small differences in the arrangement of molecules or the presence of impurities can lead to variations in density between samples of the same substance.
Is changing the size and shape of pieces of wood a chemical change true or false?
False. Changing the size and shape of pieces of wood is a physical change, not a chemical change. A chemical change involves the alteration of the chemical composition of a substance, while a physical change only affects the physical properties of a substance.
Is it false that the odor of a substance is an example of a physical property?
No, it is true that the odor of a substance is an example of a physical property. A physical property is a characteristic of a substance that can be observed without changing the identity of the substance, and odor fits this definition since it can be perceived without causing a chemical change in the substance.
True or false the density of a substance is the same for all samples of substance?
False. The density of a substance can vary depending on factors such as temperature and pressure. Additionally, impurities in a sample can also affect its density.
Is color and hardness examples of chemical properties?
This is False. The colour has to change to be a chemical change/property. If it stays the same, it is physical. Hardness is an example of a physical property. (ex. If I melt a piece of hard steel, it will become soft, liquid probably, but it isn't hard anymore, this change is reversible, therefore a physical change/property)
True or false a boiling point is a chemical property of a substance?
False. A boiling point is a physical property of a substance, not a chemical property. Chemical properties describe how a substance interacts with other substances to form new substances, while physical properties are characteristics that can be observed or measured without changing the substance's chemical composition. Boiling point is the temperature at which a substance changes from a liquid to a gas at a given pressure, which is a physical characteristic.
Is the odor of gasoline a chemical property?
No, the odor of gasoline is a physical property, not a chemical property. Chemical properties describe how a substance interacts with other substances to form new substances, while physical properties describe observable characteristics like color, odor, and texture.
The density of an substance varies with samples of that substance?
Yes, the density of a substance can vary depending on factors such as temperature, pressure, and the purity of the material. Small differences in the arrangement of molecules or the presence of impurities can lead to variations in density between samples of the same substance.
Is it true are false that a physical change of a substance changes its chemical makeup?
true
Is it true that Physical changes are often accompanied by changes in color or odor.?
No. It is false. Physical changes are not accompanied by changes in color or odor.
Is changing the size and shape of pieces of wood a chemical change true or false?
False. Changing the size and shape of pieces of wood is a physical change, not a chemical change. A chemical change involves the alteration of the chemical composition of a substance, while a physical change only affects the physical properties of a substance.
Is Flammability is not one of the characteristic properties of matter true or false?
True. Flammability is a chemical property of matter. It is not a physical property of matter. When wood burns, it changes to ashes, carbon dioxide, water vapor, and other gases. After burning, it is no longer wood.
When a physical changes occurs new substance are formed?
False. In a physical change, the substance remains the same even though there may be a change in appearance or state. The molecules of the substance do not rearrange themselves to form a new substance.
Is it true that Physical changes are often accompanied by changes in color or odor?
No, a chemical change is usually accompanied by a change in color or odor. A physical change is a change that is the same substance before and after and usually accompanied by a change in state of matter (evaporation, condensation, melting, freezing, sublimating, etc).
True or false Density is the weight per volume of a substance?
Hmmm... technically false. Density is mass/volume - it is an intrinsic property. Weight is subjective to the force of gravity, while density is not.
During a chemical change the form of a substance is altered but not its identity true or false?
The statement is false: A chemical change of a substance is defined as a change in which the substance is not the same substance after the change as it was before.
