Virtual Lab Challenge: Separation of Mixtures (POST LAB)

Which of the following was NOT a component of the mixture you separated in this activity in stage 1?

• aluminum
• salt
• sand
• iron filings

Which component of the mixture did you separate first?

• aluminum
• salt
• iron filings
• sand

What physical property of iron allowed for the separation of it from the mixture? 

• solublity in water
• particle size
• magnetism
• malleablilty

What is the chemical symbol for iron?

• I
• Ir
• F
• Fe

What chemical change occurs to the surface of iron when it comes into contact with moist air?

• a gas is produced
• it rapidly tarnishes rusts
• it bursts into flames
• nothing happens

Which of the following is a chemical property of iron?

• magnetic
• ductile
• rusts when exposed to moist air
• silvery-white metal

Which component of the mixture was soluble in water?

• aluminum
• iron filings
• salt
• sand

The chemical formula for the main component in sand is...

• SiO
• SiO₂
• Si₂O
• SiO²

Which component if the mixture has the chemical formula NaCl?

• table salt
• aluminum
• iron filings
• sand

What type of matter would table salt be classified as?

• element
• compound
• homogeneous mixture
• heterogeneous mixture