The compounds identity remain unchanged; but the new mixture is different.
Yes, properties such as density, boiling point, and melting point remain constant regardless of the amount of a substance. These properties are intrinsic to the substance and do not change based on the quantity present.
The total amount of matter in a substance remains the same after both chemical and physical changes. This is known as the Law of Conservation of Mass, which states that matter cannot be created or destroyed in a chemical reaction or physical change, only rearranged. So, the total mass of the substances before and after the change will be equal.
Sand added to water is a mixture. Sand is a solid substance composed of tiny particles, while water is a liquid. When sand is added to water, it does not undergo a chemical change and can be separated back into its original components.
specific heat capacity
mixture
The compounds identity remain unchanged; but the new mixture is different.
The mass of a substance does not change when the amount of the substance changes. The temperature of a substance does not change when the amount of the substance changes. However, the volume of a substance may change when the amount of the substance changes, depending on the conditions.
By definition, a mixture is two or more substances that are physically combined. In a chemical change, the substance interacts with another substance and undergoes a chemical change. So, no, a mixture is not a chemical change.
when you separate a substance from a mixture, it's a physical change... Technically, you can get it back in the mixture.
yes.true
In a mixture, each substance retains its own physical and chemical properties. This means that the individual components do not change or combine with each other; they simply coexist together in the mixture.
total thermal energy
The density of a substance remains constant regardless of the amount of the substance. Density is an intrinsic property of a material and is determined by its mass and volume. Increasing the amount of substance will only change the mass and volume proportionally, thus keeping the density constant.
No, the amount of substance does not change its thermal energy. Thermal energy is dependent on temperature and the specific heat capacity of the substance, not on the amount of the substance.
To change the concentration of a substance, you can either add more of the substance (to increase concentration) or dilute it by adding more solvent (to decrease concentration). The concentration is typically measured as the amount of solute divided by the total volume of the solution.
Yes, properties such as density, boiling point, and melting point remain constant regardless of the amount of a substance. These properties are intrinsic to the substance and do not change based on the quantity present.