For ps1.3 CFA wk of 9/9

Properties of Substance C:

_{It is made up of two components.}

_{It can be separated by physical processes.}

_{Its components cannot be visibly distinguished.}

_{It is uniform throughout.}

• element

• heterogenous

  mixture

• homogenous

  mixture

• compound

Answer explanation

Clues:

Cannot be visibly distinguished:

It is uniform throughout.

These both mean that it looks all the same throughout.

Homogeneous Mixture was the answer.

Properties of Substance D:

_{It is made up of two components.}

_{It can be separated by physical processes.}

_{Its components can be visibly distinguished.}

_{It is not uniform throughout.}

• element

• heterogenous

  mixture

• homogenous

  mixture

• compound

Answer explanation

Clues:

Can be visibly distinguished. You can see differences.

It is not uniform throughout.

These both mean that it looks DIFFERENT throughout.

Heterogeneous Mixture was the answer.

Properties of Substance B:

_{It is made up of three elements joined by chemical bonds.}

_{It cannot be separated by physical processes.}

_{Its components cannot be visibly distinguished.}

_{It is uniform throughout in specific ratios.}

• element

• heterogenous

  mixture

• homogenous

  mixture

• compound

Answer explanation

Clues:

Chemical bonds

Specific ratios means all parts are the exact same amounts.

Cannot be separated by physical processes means it is not a mixture.

Compound was the answer.

Tags

NGSS.MS-PS1-1

Properties of Substance A:

_{It is made up of only one component.}

_{It cannot be separated by physical processes.}

_{Its components cannot be visibly distinguished because it is all the same.}

• element

• heterogenous

  mixture

• homogenous

  mixture

• compound

Answer explanation

Clues:

It is made of one component.

It cannot be separated by physical processes.

Element was the answer.

Which order is labeled correctly?

• 1-mixture

  2-element

  3-compound

• 1-element

  2-mixture

  3-compound

• 1-element

  2-compound

  3-mixture

• 1-element

  2-mixture

  3-mixture

Tags

NGSS.MS-PS1-1

Substance A will be considered a

(a)  

Substance B will be considered a (a)   after it is heated.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

If substance Y loses its individual properties, then that means....

• It is still the same substance with the same identity.

• It has formed a new substance with a new identity.

• It will be a homogenous mixture.

• It will be a heterogenous mixture.

Tags

NGSS.MS-PS1-2

Match each particle diagram with the correct term.

• mixture

• 
• compound molecule

• 
• elemental molecule

• 
• element

• 

Tags

NGSS.MS-PS1-1

Sand and water needs to be separated.

What tool would be best to use?

• 
• 
• 
• 

Answer explanation

This would let the water drain off, but the paper filter would keep the sand from falling out of the funnel.