U1Q1 Elements and Compounds

Front

Cl

Back

chemical symbol

Front

NaH

Back

chemical formula

Front

CO: Chemical symbol or chemical formula?

Back

chemical formula

Front

Oxygen forms molecules made of two atoms, O₂. Carbon and oxygen form molecules made of one carbon atom and two oxygen atoms, CO₂. Which of the statements below is true? Options: Both O₂ and CO₂ are compounds, Both O₂ and CO₂ are molecules, O₂ is a compound and CO₂ is a molecule, O₂ is a molecule and CO₂ is a compound

Back

O₂ is a molecule and CO₂ is a compound

Front

Which statement comparing the relationship between elements and compounds to molecules is true?

Back

A molecule is composed of two or more atoms of the same element (like O₂), or atoms of more than one different elements (like all compounds)