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Chapter 1: Q12 E (page 55)

How does an element differ from a compound? How are they similar?

Short Answer

Expert verified

The difference between an element and a compound is that an element is a substance made of the same type of atoms, whereas a compound is made of different elements in definite proportions.

Elements and compounds are similar in that they are both made of atoms and in some cases molecules.

Step by step solution

01

Describing the differences between the element and compound

Element –

  • Elements are those substances that arenot broken into simple constituents by any chemical process.
  • An atom is considered to be the smallest constituent of an element.
  • These are combined to form the compound/s by any chemical reaction.

Compound –

  • Compounds are those substances thatcan be divided to form the elements or other compounds by any chemical process.
  • A molecule is the smallest constituent of the compound.
  • These are combined to form the larger compound/s by any chemical reaction.
02

Describing the similarities between the element and compound

  • These are pure substances of matter.
  • The composition is the same in the element and compound.
  • They are found in nature.
  • They are made up of atoms.

Ex., Iron(Fe), Silver(Ag), and boron(B) are the elements and Sodium chloride(NaCl) and water(H2O) are the compounds.

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Most popular questions from this chapter

The density (d) of a substance is an intensive property that is defined as the ratio of its mass(m) to its volume (V).

\(\begin{aligned}{\rm{density = }}\frac{{{\rm{mass}}}}{{{\rm{volume}}}}\\{\rm{d = }}\frac{{\rm{m}}}{{\rm{v}}}\end{aligned}\)

Considering that mass and volume are intensive properties, explain why their ratio, density is intensive.

Explain the difference between extensive properties and intensive properties.

Classify each of the following changes as physical or chemical:

(a) condensation of steam

(b) burning of gasoline

(c) souring of milk

(d) dissolving of sugar in water

(e) melting of gold

Consider the results of the archery contest shown in this figure.

(a) Which archer is most precise?

(b) Which archer is most accurate?

(c) Who is both least precise and least accurate?

What is the density of a liquid with a mass of 31.1415 g and a volume of 30.13 cm³?
See all solutions

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