Mixtures and Compounds

NaHCO₃ is an example of —

• an abbreviation

• a compound

• a mixture

• an element

Table salt, or sodium chloride has the chemical formula NaCl. How is sodium chloride classified?

• as an element

• . as a compound

• as a mixture

• as a liquid

Tags

NGSS.MS-PS1-1

Brass is a metal that is bright red and gold. It is formed by combining, not chemically, two elements, zinc and copper. Based on the information, how would brass be classified?

• an element

• compound

• mixture

• suspension

Tags

NGSS.MS-PS1-1

What does this illustrate

• Elements

• Compunds

• Mixture of Elements and Compunds

• Mixture of Compounds

Tags

NGSS.MS-PS1-1

This diagram represents a _____.

• Element

• Compound

• Mixture of compound and element

• Mixture of two elements

Tags

NGSS.MS-PS1-1

Compounds

• are made of two or more types of atoms chemically bonded together

• are made of one type of atom

• are found on the periodic table

• can be separated into their individual parts through physical means

Tags

8.P.1.1

Which of the following are examples of compounds? Check all that apply.

• Salt

  (NaCl)

• Salt Water

  (NaCl and H₂O)

• Sugar

  (C₆H₁₂O₆)

• Carbon Dioxide

  (CO₂)

Tags

8.P.1.1

When substances combine chemically...

• they form a mixture and their properties change

• they form a compound and their properties change

• they form a mixture where their properties stay the same

• the form a compound where their properties stay the same

Tags

8.P.1.1

Which of the following are examples of Mixtures?

• The atmosphere

  (N + O + Ar + H₂O...)

• Carbon Dioxide (CO₂)

• Oxygen

  (O₂₎

• Lemonade

  (sugar, lemon juice, water)

• Anything on the Periodic Table

Tags

8.P.1.1

Mixtures

• are made of two different types of atoms chemically bonded together

• Are only liquids

• Cannot be separated

• Can be separated using physical properties

Tags

8.P.1.1