Elements, Compounds, Mixtures

Which type(s) of substances are considered pure substances?

• Elements only
• Compounds only
• Mixtures only
• Elements and compounds

This type of substance is made up of one type of atom. 

• Element
• Compound
• Mixture

Which of the following requires a physical change to separate?

• Element
• Compound
• Mixture

What type of substance is being represented: O₂?

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-1

Max combines water and hydrogen to form water. What type of substance was formed?

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-5

This type of substance is formed through a chemical change. 

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-5

Which option shows only elements?

• NaCl, MgO, OH
• O, He, H, 
• OH, He, Al
• O+H, He+Al

Tags

NGSS.MS-PS1-1

What type of substance is the atmosphere?

• Element
• Compound
• Mixture

Jay combines water, sugar, and lemon juice to form lemonade. What type of substance was made?

• Element
• Compound
• Mixture

Which type of substance cannot be broken down into simpler substances?

• Element
• Compound
• Mixture