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Elemental Personalities Quiz

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Questions and Answers

What type of chemical bond is characterized by the sharing of electrons?

Metallic

Ionic

Covalent (correct)

Polar covalent

Which type of compound conducts electricity when dissolved in water?

Ionic (correct)

Metallic

Polar covalent

Covalent

What is the composition of the salt molecule (sodium chloride) found in kitchen cupboards?

Carbon and hydrogen

Sodium and oxygen

Chlorine and oxygen

Sodium and chlorine (correct)

What distinguishes a pure substance from a mixture?

A pure substance has its own chemical identity. (D) Signup and view all the answers

What happens when you mix sodium chloride (NaCl) and water?

They form new chemical bonds. (D) Signup and view all the answers

What is a molecule?

At least two atoms joined together by a chemical bond (D) Signup and view all the answers

Which elements are mentioned as preferring to be alone?

Helium and neon (C) Signup and view all the answers

What is a compound?

A group of molecules (C) Signup and view all the answers

Which type of chemical bond is mentioned in the text?

Covalent bond (A) Signup and view all the answers

How are molecules similar to words?

They are both built by linking up atoms or letters (C) Signup and view all the answers