2. Mixtures can be classified into 2 types, homogeneous and heterogeneous. They are different because
A. Heterogeneous has 2 substances while homogenous has 3 or more substances
B. Homogeneous looks the same throughout, with heterogeneous you can see the different parts
C. Heterogeneous looks the same throughout with homogeneous you can see the different parts
D. They are the same, just different names
3. Which of the following is a homogeneous mixture?
B. sand and water
A. oil and water
D. air
C. halo-halo
4. This type of mixture contains two or more substances that are visibly distinguishable.
A homogeneous
B. heterogeneous
C. solution
D. suspension
5. A substance which consists of two or more elements which have been combined chemically is called
A. element
B. compound
C. mixture
D. atom
6. Ana wants to compare the chemical properties of two substances. In doing it , he prepared two flasks containing the substances and labeled them Liquid A and Liquid B. He monitored the boiling points of the liquids and found that the boiling points were 100°C for substance A and 110°C - 112°C for liquid B. How would you classify the two liquids?
A. Liquid A is pure substance while Liquid B is a mixture
B. Liquids A and B contain two or more atoms that are chemically bonded.
C Liquid A has varying boiling points while liquid B has a fix boiling point D. Liquid A maybe homogenous or heterogeneous but substance B is not
7. A white powder was tested and heated. After some time, it melts completely. What does it imply?
A. It is a mixture
C. It is a homogeneous mixture.
B. It is a pure substance.
D. It is a combination of pure substance and mixture
8. Ethan wants to separate the marbies in a jar full of water. Which of the following is the best way to separate the mixture ?
A decantation
B. dissolving
C. evaporation
D. using a magnet
9. Which of the following will Jeofrey do to segregate the rubber bands of different colors?
A. water Decantation
B. evaporation
C. filtration
D. physical manipulation
10 What is the best way to use in separating iron filings from a mixture?
B. magnet
C. water
A filter paper
D. spoon​