What is a colloid?
What is a pure substance?
What does the odometer of an automobile measure?
What is the quantity which is measured by the area
occupied below the velocity time graph?
Answers
Answer ⤵️
1. In chemistry, a colloid is a phase separated mixture in which one substance of microscopically dispersed insoluble or soluble particles is suspended throughout another substance. Sometimes the dispersed substance alone is called the colloid; the term colloidal suspension refers unambiguously to the overall mixture.
2. A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds.
What is meant by a pure substance?
A substance that has a fixed chemical composition throughout is called a pure substance such as water, air, and nitrogen. A pure substance does not have to be of a single element or compound.
3. An odometer or odograph is an instrument used for measuring the distance traveled by a vehicle, such as a bicycle or car.
4. displacement
The area under the velocity-time graph of a body's motion is considered as the displacement of the body.
1.) Colloid are mixture where one of the substances is split into very minute particles which are dispersed throughout a second substance. The minute particles are known as colloidal particles.
2.) A pure substance is a form of matter that has a constant composition and properties that are constant throughout the sample.
3.) Odometer, is a device that measures the distance travelled by an automobile based on the perimeter of the wheels as the wheels rotate.The odometer measures the scalar quantity-the speed of the car.
4.) Area occupied below the velocity-time graph is a measure of the distance travelled by the body or displacement of the body.
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