Separating matter into its parts!

What is true about the different substances that make up a mixture?

• They are all the same material

• The are all chemically reacting

• None of them are chemically reacting with each other

Which statement correctly describes this image

• This is a mixture being separated into its parts through filtration

• This is a model of an atom being split into smaller components through fission

• This is a model of a compound going through the chemical reaction of decomposition

What is the correct description of this image

• This is a red and white mixture being separated by evaporation

• This is a decomposition of water molecules into its components

• This is nuclear fission

Select ALL correct statements about what is shown in this image of the decomposition of water (a chemical reaction).

• Water is a molecule

• Water is a compound

• There are 4 molecules of H₂ made in this reaction

• Water decomposes into molecules of H₂ and O₂

• Water decomposes into compounds of H₂ and O₂

Is Figure 1 modeling a pure substance element or compound?

• element

• compound

Which statement describes Figure 2

• Figure 2 is a pure substance

• Figure 2 is a mixture that shows a compound and an element

• Figure 2 is a mixture that shows a pure substance molecule and a pure substance element

The image is an example of

• Hand sorting

• Filtration

• Evaporation

• Magnetism

The following image shows an example of using which technique to separate a mixture?

• Filtration

• Hand-sorting

• Evaporaation

• Magnetism

We can use evaporation to separate salt from water. No chemical reactions took place. Which statement is true about a salt water?

• Salt water is a pure substance

• Salt water is one compound

• Salt water is a mixture of 2 substances

Choose the answer that is NOT a homogeneous mixture.

• Tap water

• Salt water

• Distilled water

• Sugar water