what two categories is pure substances broken in to
What is elements and compounds
100
which of the following is a mixture?
a. carbon dioxide b. silicon dioxide
c. silicon d. sand
What is sand
100
Which has the highest viscosity?
corn syrup water
milk orange juice
What is corn syrup
100
Which of the following is malleable?
a. glass b.ice
c. pottery d. gold
What is gold
200
what two categories is matter broken into
What is pure substances and mixtures
200
element or compound
Neon
What is element
200
which of the following is a characteristic of a mixture?
a. has varying properties b. contains pure substances
c.has a fixed composition d. both a and b
What is has varying properties
200
Flammability is a material's ability to burn in the presence of what?
What is oxygen?
200
a material that is malleable and conducts electricity is most likely what?
wood ice
metal motor oil
What is metal
300
water is a compound because...
What is can be broken down and it's made from two elements
300
Which of the following is not a pure substance
a. milk b. water
c. oxygen d. carbon dioxide
What is milk
300
a mixture that appears to only contain one substance
What is homogeneous
300
A substance that has high reactivity easily/not easily reacts with other substances
What is easily?
300
Filtration can be used to separate mixtures based on?
their boiling point densities
melting points size of particles
What is size of particles?
400
Symbols for elements have either ___ or ___ letters.
What is one or two?
400
made up of only one type of atom
What is an element
400
Why would we shake milk? It's a ...
a. solution b. colloid
c. pure substance d. suspension
What is colloid
400
True or False
A change in change is an example of a chemical change
What is false
400
What are the two ways to separate a mixture?
What is filtration and distillation?
500
I am a solution. I am a mixture.
What is homogeneous?
500
Cannot be broken down any further
What is an element
500
I'm a chunky mixture.
What is heterogeneous?
500
a gas forms when vinegar and baking soda are mixed - chemical or physical change?
What is chemical?
500
When a physical change happens, what does not change?