Chemistry Honors Semester 1 Final

How do you separate salt from sand and iron?

• Use a magnet to remove the iron, boil the salt/sand mixture and use a filtration sheet to separate the two. Put it in the oven to get salt on the paper.

• I don't even know...

• Boil water and so you have a salt water mixture and an iron and sand mixture.

How many sigfigs are in 90870.0

• 3 sig figs

• 6 sig figs

• 4 sig figs

• 5 sig figs

575.8 x 7.61 ... (don't do the math) how many sigfigs should there be?

• 4 sig figs

• 3 sig figs

What is the density formula

• d=v/m

• v=m/d

• d=m/v

Gold is shiny

• Qualitative

• Quantitative

Tags

NGSS.HS-PS4-3

There are 80 fishes in a pond.

• Qualitative

• Quantitative

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

Which is NOT a physical property

• Conductivity

• density

• melting point

• reaction with water

Which is NOT a chemical property?

• Reaction with water

• Reactivity with other chemicals

• Boiling point

• Flammibility

For fun: Which is not allowed in the lab?

• Food and drink

• Hair below your shoulders not tied back.

• Removing your goggles.

• All of the above

• Drinking from the beakers

He 4/2 is...

• Beta Decay

• Gamma Decay (Radiation)

• Alpha decay

Tags

NGSS.HS-PS1-8