Elements, Compounds and Mixtures study guide

What are the smallest particles of matter

• Elements

• Atoms

• Mixtures

• chemically bonded particles

A pure substance that is made up of only the same type of atoms and cannot be separated by physical or chemical means

• Homogeneous Mixtures

• Mixtures

• Elements

A pure substance that is made up of two or more elements that are chemically combined

• Compounds

• Elements

• Mixtures

• Heterogeneous mixtures

A combination of two or more pure substances that are not chemically bonded

• Element

• Mixture

• Compound

• H2O

Salt (NaCl) is a ____________

• An Element, Compound and a Homogenous mixture

• A mixture because it has a chemical formula

• An Element because it is made of only one type of atom

• Compound because it is made from more than one type of element

Tags

NGSS.MS-PS1-1

A chocolate chip cookie is what type of mixture?

• A homogenous mixture because the particles are uniformly distributed throughout

• A heterogeneous mixture because the particles are unevenly distributed throughout

• A Pure substance because the particles can only be separated chemically

A solution such as tea is what type of mixture?

• Heterogeneous mixture because the particles are unevenly distributed throughout

• Homogenous because the particles are evenly distributed throughout

• Tea is a pure substance

Which is a compounds?

• Oxygen (O)   

• Iron (Fe)  

• Glucose (C₆H₁₂O₆)

   

Tags

NGSS.MS-PS1-1

     What is the difference between an Element and a Compound?

• An Element is a pure substance while a compound is not

• A compound can can be separated only by chemical methods and an element cannot be separated by chemical or physical methods

• An Element can be separated only by chemical methods and a Compound cannot be separated by chemical or physical methods

• There no differences between an Element and a Compound

Which one is an element?

• Glucose (C₆H₁₂O₆)

• Salt (NaCl)

• Oxygen (O)