Elements and compound

Which of the following represents an element?

• H₂O

• NaCl

• H₂

• CaCO₃

Which of the following is not a compound?

• HCl

• NaCl

• Cl

• CO₂

Salt has a chemical formula of NaCl. Salt is a...

• Compound

• Mixture

• Element

• None of the Above

Salt has a chemical formula of NaCl. Salt is a...

• Compound

• Mixture

• Element

• None of the Above

What cannot be broken down into other substances?

• Compound

• Solids

• Mixture

• Element

What is made up two or more elements that are chemically combined?

• Element

• Compound

• Mixture

• Solids