Question 1

What is a chemical bond?

Accepted Answer

A force of attraction between atoms that holds them together in a compound.

Answer

A scale used to measure the acidity or basicity of a solution.

Answer

A diagram that shows the arrangement of electrons within an atom.

Answer

A physical mixture of two or more substances.

Answer

A representation of a compound using symbols and subscripts.

Question 2

Which of the following elements combine to form the compound water (H2O)?

Accepted Answer

Hydrogen and Oxygen

Answer

Oxygen and Nitrogen

Answer

Carbon and Oxygen

Answer

Hydrogen and Carbon

Question 3

What is the difference between an element and a compound?

Accepted Answer

An element is a substance that consists of only one type of atom, while a compound is a substance that consists of two or more different types of atoms chemically bonded together.

Answer

An element is a substance that consists of two or more different types of atoms chemically bonded together, while a compound is a substance that consists of only one type of atom.

Answer

An element and a compound are the same thing.

Answer

An element is a solid substance, while a compound is a liquid or gas.

Answer

An element is a mixture of two or more substances, while a compound is a pure substance.

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