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Chapter 1: Q14 E (page 55)

How does an atom differ from a molecule? In what ways are they similar?

Short Answer

Expert verified

An atom differ from a molecule because the molecules are made up of two or more elements bonded covalently.

Step by step solution

01

Explaining the differences between an atom and a molecule

Atom

  • An atom is defined as the smallest particle within the element which cannot bedivided or broken to form any other substances by any chemical reaction.
  • It is the smallest entity within the element.
  • It has three types of subatomic particles calledprotons, neutrons, and electrons.

Molecule

  • A molecule is defined as the smallest particle with a compound that can be divided to form atoms, compounds, or any other substances by any chemical reaction.
  • It is the smallest entity within thecompound.
  • The atoms are linked to produce a molecule.

02

Explaining the similarities between an atom and a molecule

  • The atoms are linked to form molecules while molecules connect to form larger molecules.
  • They are the smallest constituent particles.
  • All atoms or molecules are connected by chemical bonds.

Ex., O, Mg and H are the atoms of Oxygen, Magnesium, and Hydrogen elements respectively and CsF and NaOH are the molecules ofcesium fluoride and sodium hydroxide respectively.

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Most popular questions from this chapter

Question:Which of the following has two unpaired electrons?

(a) Mg

(b) Si

(c) S

(d) Both Mg and S

(e) Both Si and S.

Yeast converts glucose to ethanol and carbon dioxide during anaerobic fermentation as depicted in the simple chemical equation here:

\({\rm{Glucose}} \to {\rm{Ethanol + Carbon Dioxide}}\)

(a) If\(200.0g\)of glucose is fully converted, what will be the total mass of ethanol and carbon dioxide produced?

(b) If the fermentation is carried out in an open container, would you expect the mass of the container and contents after fermentation to be less than, greater than, or the same as the mass of the container and contents before fermentation? Explain.

(c) If\(99.7g\)of carbon dioxide is produced, what mass of ethanol is produced?

Classify each of the following changes as physical or chemical:

(a) coal burning

(b) ice melting

(c) mixing chocolate syrup with milk

(d) explosion of a firecracker

(e) magnetizing of a screwdriver

Does the standard enthalpy of formation of \({{\bf{H}}_{\bf{2}}}{\bf{O}}\left( {\bf{g}} \right)\)differ from 螖H掳 for the reaction \({\bf{2}}{{\bf{H}}_{\bf{2}}}\left( {\bf{g}} \right){\bf{ + }}{{\bf{O}}_{\bf{2}}}\left( {\bf{g}} \right) \to {\bf{2}}{{\bf{H}}_{\bf{2}}}{\bf{O}}\left( {\bf{g}} \right)\)?

Convert the temperature of the coldest area in a freezer, \( - 10{\rm{ }}^\circ F,\)to degrees Celsius and kelvin.
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