The circumference of a circle with a diameter of 10 cm is 31.4cm.
The circumference of a circle is its edge or the measurement of its entire arc.
The circumference of a circle with radius 
is 
.
The circle in question has a diameter of 10 cm.
The radius of a circle's diameter is equal to its length divided by two. Consequently, the given circle's radius is 5 cm.
If we assume that π=3.14, then the given circle's circumference will be equal to 2×π×5. Consequently, 31.4 cm is the required circumference.
As a result, a circle with a diameter of 10 cm has a 31.4 cm circumference and it has been expressed in three significant figures.
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I would say that sand in water is a suspension as you can see the particles with the naked eye or a microscope. Also, the solution will settle if left alone and the sand will sink to the bottom.
No, it is not possible.
A compound is a substance or material constituting of two or more elements that have been chemically combined together to form a new, different substance
Any elements that have been joined together chemically can only be separated back into their constituent elements by chemical means because the bonds holding them together can only be broken using chemical means.
A good example is sodium chloride, table salt. Poisonous chlorine gas and toxic sodium metal react together whereby sodium loses one electron which chlorine readily accepts and in the process an ionic bond is formed between the two resulting in a totally new, harmless compound , sodium chloride.
Only through electrolysis can sodium chloride be separated back into sodium and chlorine gas. No physical means can be used to do that.
Answer:
acidic colorless gas
Explanation:
Carbon dioxide is an acidic colorless gas with a density of about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas.
