Question 16

what is chalk considered?

a)an element

b)a colloid

c)a compound

d)a solution

Chalk is a C) Compound.

Element refers to one single substance which is made up of atoms and sub atomic particles namely electron, proton and neutron. A colloid is a blend where one substance of minutely scattered insoluble or solvent particles is suspended all through another substance.

Solution is composed of two components solute and solvent. When elements combine together it leads to the formation of compound. Chalk is considered as compound because, it is a substance formed by fusion of carbon dioxide and calcium hydroxide.

explanation:

plz give me the characteristics.

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

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