6th Final Midterm (Adv Science)

Metalloids

• Elements that are similar only to metals

• Elements that have characteristics similar to both metals and nonmetals

• The most abundant elements on earth

• Metals that have been melted down and formed to look like metals

which list shows the object in order from most dense to least dense?

• bottle cap

• grape

• sponge

• screw

Which of these is the most dense?

• milk

• maple syrup

• dish soap

• lamp oil

A student is given a sample of an unknown substance. He is asked to determine if it is classified as a metal, a metalloid, or a nonmetal. He discovered that the unknown element conducted some heat and electricity, had a shiny luster, and broke easily. This element is most likely a 

Which of the following tables lists the properties of metals and nonmeatals correctly?

• 
• 
• 
• 

All of the following are properties used to classify elements as metals, non-metals, and metalloids EXCEPT —

• texture
• conductivity
• luster
• malleability

• A

• B

• C

• D

What is a chemical change?

• How two chemicals react with one another when combined

• A property that we can measure or observe with our 5 senses or other tools

• When two chemicals react with one another to form a new substance

• When a change occurs but it does not result in the formation of a new substance

Tags

NGSS.MS-PS1-2

Which observations prove a chemical change occurred ?

• Dissolving and expected color change

• Mixing and dissolving

• State of matter change and boiling water bubbles

• Unexpected color change and temperature change

Tags

NGSS.MS-PS1-2

The net force here is

• 900N to the left

• 900N to the right

• 450N to the right

• 0N to the right

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1