Chemical Formula Flashcard

Front

How many oxygen atoms are in Al₂(SO₄)₃?

Back

There are 12 oxygen atoms in Al₂(SO₄)₃.

Front

How many elements are in C₆H₁₂O₆?

Back

There are 3 elements in C₆H₁₂O₆: Carbon (C), Hydrogen (H), and Oxygen (O).

Front

What is a pure substance with only one type of atom?

Back

An element is a pure substance that consists of only one type of atom.

Front

Which of the following is a compound: Co, O₂, C, CO₂?

Back

CO₂ is a compound.

Front

Which of these is an element: H₂Cr, Cr₃, OH, PNi?

Back

Cr₃ is an element.

Front

What is a chemical formula?

Back

A chemical formula is a way of expressing the composition of a substance using symbols for its constituent elements.

Front

What is the difference between an element and a compound?

Back

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

Front

What does the subscript in a chemical formula indicate?

Back

The subscript indicates the number of atoms of the element in the molecule.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H₂O.

Front

How many hydrogen atoms are in C₆H₁₂O₆?

Back

There are 12 hydrogen atoms in C₆H₁₂O₆.