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Elemental Personalities Quiz

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Questions and Answers

What is the main factor used to distinguish between ionic and covalent compounds?

Their reactivity with oxygen

Their color when in solid state

Their molecular weight

Their ability to conduct electricity when dissolved in water (correct)

What is the composition of the salt molecule (sodium chloride)?

Sodium and chlorine (correct)

Sodium and oxygen

Chlorine and hydrogen

Sodium and carbon

What distinguishes a pure substance from a mixture?

Pure substances are always in liquid form, while mixtures can be in any state of matter

Pure substances have only one compound or element, while mixtures have two or more compounds and/or elements that do not form chemical bonds with each other (correct)

Pure substances have a higher boiling point than mixtures

Pure substances are always colorful, while mixtures are colorless

How can you separate sodium chloride (NaCl) and water after they are mixed?

By boiling off the water and collecting the steam to obtain pure water and the salt left behind (A) Signup and view all the answers

What is the main difference between ionic and covalent bonds?

In ionic bonds, electrons are transferred, while in covalent bonds, electrons are shared (D) Signup and view all the answers

Which type of elements prefer to be alone?

Noble gases like helium and neon (B) Signup and view all the answers

What is a molecule?

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

Elemental Personalities Quiz

Choose a study mode

Podcast

Questions and Answers

What is the main factor used to distinguish between ionic and covalent compounds?

What is the composition of the salt molecule (sodium chloride)?

What distinguishes a pure substance from a mixture?

How can you separate sodium chloride (NaCl) and water after they are mixed?

What is the main difference between ionic and covalent bonds?

Which type of elements prefer to be alone?

What is a molecule?

Which compound is an example of a mixture?

What type of chemical bond forms table salt (NaCl)?

Which type of elements build different molecules?

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