1 which of the following is a heterogeneous mixture?
A coffee
C orange juice
B milk
D tea
2. A homogeneous liquid which cannot be separated into components by distillation but can be decomposed
by electrolysis is classified as alan
A element
C. solution
B. mixture
D. substance
3. which method of separation is best to use for separating a solid product formed from mixing two solutions?
A filtration
C. evaporation
B. decantation
D. distillation
4. A pure substance that cannot be decomposed into anything simpler by chemical or physical means is calle
a (an)
A compound
C. isotope
B. element
D. mixture
5. which of the following incorrectly describes a method used to separate mixtures?
A crystallization separates mixtures based on solubility
B. extraction separates mixtures based on boiling point
C. filtration separates mixtures based on particle size
D. floatation separates mixtures based on density
A. air
6
is a homogeneous mixture.
C. chicken mami
B. beef siomai
D. Milky Way chocolate bar
7 which method of separation is best use for obtaining salt from seawater?
A chromatography
C. evaporation
B. distillation
D. filtration
8. A substance that cannot be broken down into a simpler form through ordinary chemical means is called
alan
A atom
C. element
B. compound
D. mixture
9. what is the process of removing a liquid from something by heat?
A. decantation
Cevaporation
B. distillation
D filtration
10. A sample of a salt and water solution is homogeneous throughout Is this sample a mixture or a pur
substance?
A. a pure substance, since it is the same throughout
B. a mixture, because it can have a variable composition
C. a pure substance, because it has a definite composition
D. a mixture, because it has a fixed, definite composition​